MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Size: px
Start display at page:

Download "MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question."

Transcription

1 Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Two radio antennas are 120 m apart on a north-south line. The two antennas radiate in phase at a frequency of 3.4 MHz. All radio measurements are made far from the antennas. The smallest angle, reckoned east of north from the antennas, at which constructive interference of two radio waves occurs, is closest to: A) 47 B) 34 C) 38 D) 30 E) 43 1) 2) Two radio antennas are 100 m apart on a north-south line. The two antennas radiate in phase at a frequency of 4.9 MHz. All radio measurements are made far from the antennas. The smallest angle, reckoned north of east from the antennas, at which destructive interference of the two radio waves occurs, is closest to: A) 22 B) 13 C) 27 D) 8.9 E) 18 2) 3) Two radio antennas are 130 m apart on a north-south line. The two antennas radiate in phase at a frequency of 4.7 MHz. All radio measurements are made far from the antennas. Point A is due east of the antennas and point B is 30 north of east from the antennas. Both points A and B are at the same large distance from the antennas. The ratio of the intensity of the radio signal at B to that at A is closest to: A) 1.0 B) 1.5 C) 3.0 D) 0.50 E) 2.0 3) 4) Two radio antennas are 10 km apart on a north-south axis on a seacoast. The antennas broadcast identical AM radio signals, in phase, at a frequency of 8.20 MHz. A steamship, 200 km offshore, travels due north at a speed of 15 km/hr and passes east of the antennas. A radio on board the ship is tuned to the broadcast frequency. The reception of the radio signal on the ship is a maximum at a given instant. The time interval until the next occurrence of maximum reception is closest to: A) 5.1 min B) 2.2 min C) 3.7 min D) 4.4 min E) 2.9 min 4) 5) Two radio antennas are 10 km apart on a north-south axis on a seacoast. The antennas broadcast identical AM radio signals, in phase, at a frequency of 6.80 MHz. A steamship, 200 km offshore, travels due north at a speed of 15 km/hr and passes east of the antennas. A radio on board the ship is tuned to the broadcast frequency. Four minutes after a radio signal of maximum intensity is received, the ratio of the intensity of the signal received to the maximum intensity is closest to: A) 0.25 B) 0.50 C) 0.83 D) 0.93 E) ) 1

2 Figure 35.1a 6) An FM radio transmitter, operating at a frequency of 120 MHz, is atop a 100-m tower. An airplane is in flight over the ocean at an altitude of 2000 m. Radio waves reach the airplane directly from the transmitter and by reflection from the surface of the ocean. When the airplane is 86 km from the tower, the pilot observes that radio reception has faded due to destructive interference of the waves in the two paths. Assume the wave reflected from the ocean surface has undergone a half-wave phase shift. In Fig. 35.1a, the waves of the reflected path arrive at the airplane delayed, with respect to the direct path. The time interval of this delay, in ns, is closest to: A) 20 B) 18 C) 22 D) 14 E) 16 6) Figure 35.1b 7) An FM radio transmitter, operating at a frequency of 120 MHz, is atop a 100 m tower. An airplane is in flight over the ocean at an altitude of 2000 m. Radio waves reach the airplane directly from the transmitter and by reflection from the surface of the ocean. When the airplane is 89 km from the tower, the pilot observes that radio reception has faded due to destructive interference of the waves in the two paths. Assume the wave reflected from the ocean surface has undergone a half-wave phase shift. In Fig. 35.1b, the ratio of the difference in the lengths of the two radio paths to the wavelength is closest to: A) 2.0 B) 1.9 C) 2.1 D) 2.2 E) 1.8 7) 2

3 Figure 35.2a 8) A 610-nm thick film, of index n 1 = 1.40, is on the surface of a glass plate, of index n 2 = A ray of monochromatic light, of 500-nm wavelength, is incident normally upon the air-film interface, and undergoes reflections and transmissions. Consider points A, B, C, and D as being at a negligible distance from their nearest interfaces, respectively. In Fig. 35.2a, the phase difference in the wave at B, with respect to the wave at A, is closest to: A) 8.6 rad B) 8.7 rad C) 11 rad D) 9.6 rad E) 12 rad 8) Figure 35.2b 9) A 250-nm thick film, of index n 1 = 1.40, is on the surface of a glass plate, of index n 2 = A ray of monochromatic light, of 500-nm wavelength, is incident normally upon the air-film interface, and undergoes reflections and transmissions. Consider points A, B, C, and D as being at a negligible distance from their nearest interfaces, respectively. In Fig. 35.2b, the phase difference in the wave at C, with respect to the wave at A, is closest to: A) 3.3 rad B) 4.4 rad C) 5.5 rad D) 1.3 rad E) 2.3 rad 9) 3

4 Figure 35.2c 10) A 880-nm thick film, of index n 1 = 1.40, is on the surface of a glass plate, of index n 2 = A ray of monochromatic light, of 500-nm wavelength, is incident normally upon the air-film interface, and undergoes reflections and transmissions. Consider points A, B, C, and D as being at a negligible distance from their nearest interfaces, respectively. In Fig. 35.2c, the phase difference in the wave at D, with respect to the wave at A, is closest to: A) 33 rad B) 28 rad C) 31 rad D) 29 rad E) 30 rad 10) 11) Light of wavelength nm in air falls at normal incidence on an oil film that is nm thick. The oil is floating on a water layer 1500 nm thick. The refractive index of water is 1.33, and that of the oil is The number of wavelengths of light that fit in the oil film is closest to: A) 2.80 B) 2.66 C) 3.53 D) 4.69 E) ) 12) Light of wavelength nm in air falls at normal incidence on an oil film that is nm thick. The oil is floating on a water layer 1500 nm thick. The refractive index of water is 1.33, and that of the oil is You want to add oil so that light reflected off of the top of the oil film will be canceled. The minimum distance that you should increase the oil film is closest to: A) 121 nm B) 106 nm C) 152 nm D) 75.9 nm E) 60.7 nm 12) 13) At most, how many bright fringes can be formed on one side of the central bright fringe (not counting the central bright fringe) when light of 625 nm falls on a double slit whose spacing is 13) m? A) 2 B) 3 C) 4 D) 5 E) 6 Situation 35.1 A 360-nm thick oil film floats on the surface of the water. The indices of refraction of the oil and the water are 1.50 and 1.33, respectively. The surface of the oil is illuminated from above at normal incidence with white light. 14) In Situation 35.1, the two wavelengths of light in the 400-nm to 800-nm wavelength band that are most strongly reflected, in nm, are closest to: A) 430 and 720 B) 450 and 740 C) 410 and 700 D) 470 and 760 E) 490 and ) 4

5 15) In Situation 35.1, the wavelength of light in the 400-nm to 800-nm wavelength band that is most weakly reflected, in nm, is closest to: A) 520 B) 580 C) 600 D) 540 E) ) Situation 35.2 A pair of narrow slits, separated by 1.8 mm, is illuminated by a monochromatic light source. Light waves arrive at the two slits in phase. A fringe pattern is observed on a screen 4.8 m from the slits. 16) In Situation 35.2, there are 5.0 bright fringes/cm on the screen. The wavelength of the monochromatic light is closest to: A) 650 nm B) 750 nm C) 700 nm D) 600 nm E) 550 nm 16) 17) In Situation 35.2, monochromatic light of 450-nm wavelength is used. The angular separation between adjacent dark fringes on the screen, measured at the slits, in m rad, is closest to: A) 0.15 B) 0.20 C) 0.36 D) 0.30 E) ) Situation 35.3 Two optically flat glass plates, 16 cm long, are in contact at one end and separated by mm at the other end. The space between the plates is occupied by oil with index of refraction The index of the glass plates is The plates are illuminated at normal incidence with monochromatic light, and fringes are observed. 18) In Situation 35.3, the monochromatic light has a wavelength of 580 nm. The number of bright fringes that are visible is closest to: A) 80 B) 60 C) 90 D) 70 E) ) 19) In Situation 35.3, the spacing of the dark fringes is 2.0 mm. The wavelength of the monochromatic light, in nm, is closest to: A) 475 B) 675 C) 525 D) 725 E) ) Figure 35.3 Coherent monochromatic light of wavelength nm passes through a pair of thin parallel slits. Fig shows the central portion of the pattern of bright fringes viewed on a screen 1.40 m beyond the slits. 20) For the two slits in Fig. 35.3, the distance between them is closest to: A) mm B) mm C) mm D) mm E) mm 20) 5

6 21) For the two slits in Fig. 35.3, suppose we decrease the wavelength of the light by half, making it nm. Assume that we can still detect the bright spots with instruments, even though we cannot see them. The width of the nine-spot pattern shown in Fig.35.3 would now be closest to: A) cm B) 1.78 cm C) 5.04 cm D) 10.1 cm E) 1.26 cm 21) Situation 35.4 The curved surface of a plano-convex glass lens is placed on an optically flat glass plate. The radius of curvature of the convex surface is 40 cm. The plane surface of the lens is illuminated at normal incidence with monochromatic light and Newton's rings are observed by reflection. Do not consider the center spot as a ring. 22) In Situation 35.4, the light has a wavelength of 720 nm. The radius of the third bright ring, in mm, is closest to: A) 0.85 B) 0.76 C) 0.66 D) 0.93 E) ) 23) In Situation 35.4, the radius of the third dark ring is 0.80 mm. The wavelength of the light, in nm, is closest to: A) 650 B) 490 C) 580 D) 530 E) ) Situation 35.5 The mirrors of a Michelson interferometer are 5.0 cm wide. Monochromatic light of 450-nm wavelength is used and 12.0 fringes are observed. 24) In Situation 35.5, the angle formed by the plane of the movable mirror and the plane of the image of the fixed mirror, in mrad, is closest to: A) 36 B) 45 C) 72 D) 63 E) 54 24) 25) In Situation 35.5, the movable mirror is moved toward the observer and 12.0 fringes travel across the field of view. The distance the movable mirror was moved, in mm, is closest to: A) 4.5 B) 5.4 C) 3.6 D) 2.7 E) ) Figure ) In Fig. 35.4, Lloyd's Mirror is an apparatus that can be used to form interference fringes using a single source. Light from the source is reflected off a plane mirror and viewed on a screen. A reflected ray and a direct ray can interfere to form a fringe pattern on the screen. In the arrangement drawn here, the screen is 2.4 m from the source, and the separation between fringes on the screen is 1.3 mm. The light has wavelength 580 nm. How high above the reflecting plane is the source positioned? A) 0.54 mm B) 0.27 mm C) 1.08 mm D) 1.22 mm E) 1.64 mm 26) 6

7 27) An oil film (n = 1.48) of thickness 290 nm floating on water is illuminated with white light at normal incidence. What is the wavelength of the dominant color in the reflected light? A) blue (470 nm) B) blue-green (493 nm) C) violet (404 nm) D) green (541 nm) E) yellow (572 nm) 27) 28) If light traveling in material of index n 1 is reflected from a material of index n 2, then in the case 28) where n 2 > n 1 the light undergoes a 180 phase shift on reflection. This helps us to understand A) why a dark fringe appears on the axis (! = 0 ) in a double slit interference pattern. B) why no factor of two appears in the equation d sin! = m!. C) why the central spot in Newton's rings is dark. D) why the separation of fringes due to two slit interference increases with increasing angle of deviation. E) why nonreflective coatings on lenses are made using coating material with a greater index of refraction than that of the glass they are coating. 29) Light passes through a pair of very thin parallel slits. The resulting interference pattern is viewed far from the slits at various angles! relative to the centerline coming outward from the midpoint between the slits. The central bright fringe is at! = 0, and the next bright fringes on either side of it are at! = ±15. If the central bright fringe has intensity I 0, the intensity of the next bright fringe on either side of it is: A) I 0 B) I 0 cos 15 C) I 0/2 D) I 0/ 2 29) E) I 0 cos ) Two small forward-facing speakers are 2.50 m apart. They are both emitting, in phase with each other, a sound of frequency 1100 Hz in a room where the speed of sound is 344 m/s. A person is standing opposite the midpoint between the speakers and is initially 18.0 m from the midpoint. As this person slowly walks parallel to the line connecting the speakers, at what angle! (relative to the centerline coming outward from the midpoint between the speakers) will he first hear no sound? A) 7.17 B) 3.59 C) 1.79 D) E) rad 30) SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 31) Light of wavelength 519 nm passes through two slits. In the interference pattern on a screen 4.6 m away, adjacent bright fringes are separated by 3.9 mm. What is the separation of the two slits? 31) 7

8 32) Light is incident perpendicularly from air onto a liquid film that is on a glass plate. The liquid film is 216 nm thick, and the liquid has index of refraction The glass has index of refraction n = Calculate the longest visible wavelength (as measured in air) of the light for which there will be totally destructive interference between the rays reflected from the top and bottom surfaces of the film. (Note: Assume that the visible spectrum lies between 400 and 700 nm.) 32) 33) A soap bubble, when illuminated with light of 587 nm, appears to be especially reflective. If the index of refraction of the film is 1.35, what is the thinnest thickness the soap film can be? 33) 34) Light of wavelength! = 525 nm passes through two slits separated by mm and produces an interference pattern on a screen 7.80 m away. Let the intensity at the central maximum be Io. What is the distance on the screen from the center of this central maximum to the point where the intensity has fallen to 1/2 I o? (Assume that the slits are sufficiently narrow that diffraction effects may be ignored.) 34) 35) Monochromatic laser light of frequency Hz is shown on a pair of thin parallel slits, and the pattern is viewed on a screen 1.20 m away. The fifth bright fringes (not counting the central fringe) occur at ±2.12 cm on either side of the central bright fringe. The entire apparatus is now immersed in a transparent liquid. When the experiment is repeated, the fifth bright fringes now occur at ±1.43 cm from the central bright fringe. (a) How far apart are the slits? (b) What is the index of refraction of the liquid? 35) 8

9 Answer Key Testname: UNTITLED4 1) E 2) E 3) A 4) E 5) C 6) E 7) E 8) C 9) D 10) B 11) A 12) E 13) C 14) A 15) D 16) B 17) E 18) E 19) D 20) B 21) E 22) A 23) D 24) E 25) D 26) A 27) E 28) C 29) A 30) B 31) 0.61 mm 32) 691 nm 33) 109 nm 34) m 35) (a) mm (b)

10 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) 15) 16) 17) 18) 19) 20) 21) 22) 23) 24) 25) 26) 27) 28) 29) 30) 31) 32) 33) 34) 35) 10

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A single slit forms a diffraction pattern, with the first minimum at an angle of 40 from

More information

AP Physics B Ch. 23 and Ch. 24 Geometric Optics and Wave Nature of Light

AP Physics B Ch. 23 and Ch. 24 Geometric Optics and Wave Nature of Light AP Physics B Ch. 23 and Ch. 24 Geometric Optics and Wave Nature of Light Name: Period: Date: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Reflection,

More information

6) How wide must a narrow slit be if the first diffraction minimum occurs at ±12 with laser light of 633 nm?

6) How wide must a narrow slit be if the first diffraction minimum occurs at ±12 with laser light of 633 nm? Test IV Name 1) In a single slit diffraction experiment, the width of the slit is 3.1 10-5 m and the distance from the slit to the screen is 2.2 m. If the beam of light of wavelength 600 nm passes through

More information

PHYS 222 Spring 2012 Final Exam. Closed books, notes, etc. No electronic device except a calculator.

PHYS 222 Spring 2012 Final Exam. Closed books, notes, etc. No electronic device except a calculator. PHYS 222 Spring 2012 Final Exam Closed books, notes, etc. No electronic device except a calculator. NAME: (all questions with equal weight) 1. If the distance between two point charges is tripled, the

More information

PRACTICE EXAM IV P202 SPRING 2004

PRACTICE EXAM IV P202 SPRING 2004 PRACTICE EXAM IV P202 SPRING 2004 1. In two separate double slit experiments, an interference pattern is observed on a screen. In the first experiment, violet light (λ = 754 nm) is used and a second-order

More information

Waves and Light Extra Study Questions

Waves and Light Extra Study Questions Waves and Light Extra Study Questions Short Answer 1. Determine the frequency for each of the following. (a) A bouncing spring completes 10 vibrations in 7.6 s. (b) An atom vibrates 2.5 10 10 times in

More information

Interference. Physics 102 Workshop #3. General Instructions

Interference. Physics 102 Workshop #3. General Instructions Interference Physics 102 Workshop #3 Name: Lab Partner(s): Instructor: Time of Workshop: General Instructions Workshop exercises are to be carried out in groups of three. One report per group is due by

More information

EXPERIMENT O-6. Michelson Interferometer. Abstract. References. Pre-Lab

EXPERIMENT O-6. Michelson Interferometer. Abstract. References. Pre-Lab EXPERIMENT O-6 Michelson Interferometer Abstract A Michelson interferometer, constructed by the student, is used to measure the wavelength of He-Ne laser light and the index of refraction of a flat transparent

More information

PHY208FALL2008. Week2HW. Introduction to Two-Source Interference. Due at 11:59pm on Friday, September 12, View Grading Details [ Print ]

PHY208FALL2008. Week2HW. Introduction to Two-Source Interference. Due at 11:59pm on Friday, September 12, View Grading Details [ Print ] Assignment Display Mode: View Printable Answers PHY208FALL2008 Week2HW Due at 11:59pm on Friday September 12 2008 View Grading Details [ Print ] The following three problems concern interference from two

More information

Physical Science Study Guide Unit 7 Wave properties and behaviors, electromagnetic spectrum, Doppler Effect

Physical Science Study Guide Unit 7 Wave properties and behaviors, electromagnetic spectrum, Doppler Effect Objectives: PS-7.1 Physical Science Study Guide Unit 7 Wave properties and behaviors, electromagnetic spectrum, Doppler Effect Illustrate ways that the energy of waves is transferred by interaction with

More information

Diffraction of Laser Light

Diffraction of Laser Light Diffraction of Laser Light No Prelab Introduction The laser is a unique light source because its light is coherent and monochromatic. Coherent light is made up of waves, which are all in phase. Monochromatic

More information

Eighth Grade Electromagnetic Radiation and Light Assessment

Eighth Grade Electromagnetic Radiation and Light Assessment Eighth Grade Electromagnetic Radiation and Light Assessment 1a. Light waves are the only waves that can travel through. a. space b. solids 1b. Electromagnetic waves, such as light, are the only kind of

More information

Answer: b. Answer: a. Answer: d

Answer: b. Answer: a. Answer: d Practice Test IV Name 1) In a single slit diffraction experiment, the width of the slit is 3.1 10-5 m and the distance from the slit to the screen is 2.2 m. If the beam of light of wavelength 600 nm passes

More information

Physics 10. Lecture 29A. "There are two ways of spreading light: to be the candle or the mirror that reflects it." --Edith Wharton

Physics 10. Lecture 29A. There are two ways of spreading light: to be the candle or the mirror that reflects it. --Edith Wharton Physics 10 Lecture 29A "There are two ways of spreading light: to be the candle or the mirror that reflects it." --Edith Wharton Converging Lenses What if we wanted to use refraction to converge parallel

More information

Physics 41 Chapter 38 HW Key

Physics 41 Chapter 38 HW Key Physics 41 Chapter 38 HW Key 1. Helium neon laser light (63..8 nm) is sent through a 0.300-mm-wide single slit. What is the width of the central imum on a screen 1.00 m from the slit? 7 6.38 10 sin θ.11

More information

v = fλ PROGRESSIVE WAVES 1 Candidates should be able to :

v = fλ PROGRESSIVE WAVES 1 Candidates should be able to : PROGRESSIVE WAVES 1 Candidates should be able to : Describe and distinguish between progressive longitudinal and transverse waves. With the exception of electromagnetic waves, which do not need a material

More information

INTERFERENCE OBJECTIVES PRE-LECTURE. Aims

INTERFERENCE OBJECTIVES PRE-LECTURE. Aims 53 L4 INTERFERENCE Aims OBJECTIVES When you have finished this chapter you should understand how the wave model of light can be used to explain the phenomenon of interference. You should be able to describe

More information

Waves Sound and Light

Waves Sound and Light Waves Sound and Light r2 c:\files\courses\1710\spr12\wavetrans.doc Ron Robertson The Nature of Waves Waves are a type of energy transmission that results from a periodic disturbance (vibration). They are

More information

1051-232 Imaging Systems Laboratory II. Laboratory 4: Basic Lens Design in OSLO April 2 & 4, 2002

1051-232 Imaging Systems Laboratory II. Laboratory 4: Basic Lens Design in OSLO April 2 & 4, 2002 05-232 Imaging Systems Laboratory II Laboratory 4: Basic Lens Design in OSLO April 2 & 4, 2002 Abstract: For designing the optics of an imaging system, one of the main types of tools used today is optical

More information

ATOMIC SPECTRA. Apparatus: Optical spectrometer, spectral tubes, power supply, incandescent lamp, bottles of dyed water, elevating jack or block.

ATOMIC SPECTRA. Apparatus: Optical spectrometer, spectral tubes, power supply, incandescent lamp, bottles of dyed water, elevating jack or block. 1 ATOMIC SPECTRA Objective: To measure the wavelengths of visible light emitted by atomic hydrogen and verify the measured wavelengths against those predicted by quantum theory. To identify an unknown

More information

3.5.4.2 One example: Michelson interferometer

3.5.4.2 One example: Michelson interferometer 3.5.4.2 One example: Michelson interferometer mirror 1 mirror 2 light source 1 2 3 beam splitter 4 object (n object ) interference pattern we either observe fringes of same thickness (parallel light) or

More information

Study Guide for Exam on Light

Study Guide for Exam on Light Name: Class: Date: Study Guide for Exam on Light Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which portion of the electromagnetic spectrum is used

More information

Geometric Optics Converging Lenses and Mirrors Physics Lab IV

Geometric Optics Converging Lenses and Mirrors Physics Lab IV Objective Geometric Optics Converging Lenses and Mirrors Physics Lab IV In this set of lab exercises, the basic properties geometric optics concerning converging lenses and mirrors will be explored. The

More information

C) D) As object AB is moved from its present position toward the left, the size of the image produced A) decreases B) increases C) remains the same

C) D) As object AB is moved from its present position toward the left, the size of the image produced A) decreases B) increases C) remains the same 1. For a plane mirror, compared to the object distance, the image distance is always A) less B) greater C) the same 2. Which graph best represents the relationship between image distance (di) and object

More information

Refraction of Light at a Plane Surface. Object: To study the refraction of light from water into air, at a plane surface.

Refraction of Light at a Plane Surface. Object: To study the refraction of light from water into air, at a plane surface. Refraction of Light at a Plane Surface Object: To study the refraction of light from water into air, at a plane surface. Apparatus: Refraction tank, 6.3 V power supply. Theory: The travel of light waves

More information

PHYSICS PAPER 1 (THEORY)

PHYSICS PAPER 1 (THEORY) PHYSICS PAPER 1 (THEORY) (Three hours) (Candidates are allowed additional 15 minutes for only reading the paper. They must NOT start writing during this time.) ---------------------------------------------------------------------------------------------------------------------

More information

Physics 30 Worksheet # 14: Michelson Experiment

Physics 30 Worksheet # 14: Michelson Experiment Physics 30 Worksheet # 14: Michelson Experiment 1. The speed of light found by a Michelson experiment was found to be 2.90 x 10 8 m/s. If the two hills were 20.0 km apart, what was the frequency of the

More information

WAVELENGTH OF LIGHT - DIFFRACTION GRATING

WAVELENGTH OF LIGHT - DIFFRACTION GRATING PURPOSE In this experiment we will use the diffraction grating and the spectrometer to measure wavelengths in the mercury spectrum. THEORY A diffraction grating is essentially a series of parallel equidistant

More information

3.14 understand that light waves are transverse waves which can be reflected, refracted and diffracted

3.14 understand that light waves are transverse waves which can be reflected, refracted and diffracted Light and Sound 3.14 understand that light waves are transverse waves which can be reflected, refracted and diffracted 3.15 use the law of reflection (the angle of incidence equals the angle of reflection)

More information

PROPERTIES OF THIN LENSES. Paraxial-ray Equations

PROPERTIES OF THIN LENSES. Paraxial-ray Equations PROPERTIES OF THIN LENSES Object: To measure the focal length of lenses, to verify the thin lens equation and to observe the more common aberrations associated with lenses. Apparatus: PASCO Basic Optical

More information

Physics 25 Exam 3 November 3, 2009

Physics 25 Exam 3 November 3, 2009 1. A long, straight wire carries a current I. If the magnetic field at a distance d from the wire has magnitude B, what would be the the magnitude of the magnetic field at a distance d/3 from the wire,

More information

Note it they ancients had known Newton s first law, the retrograde motion of the planets would have told them that the Earth was moving.

Note it they ancients had known Newton s first law, the retrograde motion of the planets would have told them that the Earth was moving. 6/24 Discussion of the first law. The first law appears to be contained within the second and it is. Why state it? Newton s laws are not always valid they are not valid in, say, an accelerating automobile.

More information

Chapter 23. The Refraction of Light: Lenses and Optical Instruments

Chapter 23. The Refraction of Light: Lenses and Optical Instruments Chapter 23 The Refraction of Light: Lenses and Optical Instruments Lenses Converging and diverging lenses. Lenses refract light in such a way that an image of the light source is formed. With a converging

More information

Chapter 17: Light and Image Formation

Chapter 17: Light and Image Formation Chapter 17: Light and Image Formation 1. When light enters a medium with a higher index of refraction it is A. absorbed. B. bent away from the normal. C. bent towards from the normal. D. continues in the

More information

Reflection and Refraction

Reflection and Refraction Equipment Reflection and Refraction Acrylic block set, plane-concave-convex universal mirror, cork board, cork board stand, pins, flashlight, protractor, ruler, mirror worksheet, rectangular block worksheet,

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A photo cathode whose work function is 2.4 ev, is illuminated with white light that has

More information

Using light scattering method to find The surface tension of water

Using light scattering method to find The surface tension of water Experiment (8) Using light scattering method to find The surface tension of water The aim of work: The goals of this experiment are to confirm the relationship between angular frequency and wave vector

More information

GEOMETRICAL OPTICS. Lens Prism Mirror

GEOMETRICAL OPTICS. Lens Prism Mirror GEOMETRICAL OPTICS Geometrical optics is the treatment of the passage of light through lenses, prisms, etc. by representing the light as rays. A light ray from a source goes in a straight line through

More information

Holography 1 HOLOGRAPHY

Holography 1 HOLOGRAPHY Holography 1 HOLOGRAPHY Introduction and Background The aesthetic appeal and commercial usefulness of holography are both related to the ability of a hologram to store a three-dimensional image. Unlike

More information

After a wave passes through a medium, how does the position of that medium compare to its original position?

After a wave passes through a medium, how does the position of that medium compare to its original position? Light Waves Test Question Bank Standard/Advanced Name: Question 1 (1 point) The electromagnetic waves with the highest frequencies are called A. radio waves. B. gamma rays. C. X-rays. D. visible light.

More information

Law of Reflection. The angle of incidence (i) is equal to the angle of reflection (r)

Law of Reflection. The angle of incidence (i) is equal to the angle of reflection (r) Light GCSE Physics Reflection Law of Reflection The angle of incidence (i) is equal to the angle of reflection (r) Note: Both angles are measured with respect to the normal. This is a construction line

More information

4.4 WAVE CHARACTERISTICS 4.5 WAVE PROPERTIES HW/Study Packet

4.4 WAVE CHARACTERISTICS 4.5 WAVE PROPERTIES HW/Study Packet 4.4 WAVE CHARACTERISTICS 4.5 WAVE PROPERTIES HW/Study Packet Required: READ Hamper pp 115-134 SL/HL Supplemental: Cutnell and Johnson, pp 473-477, 507-513 Tsokos, pp 216-242 REMEMBER TO. Work through all

More information

Basic Optics System OS-8515C

Basic Optics System OS-8515C 40 50 30 60 20 70 10 80 0 90 80 10 20 70 T 30 60 40 50 50 40 60 30 C 70 20 80 10 90 90 0 80 10 70 20 60 50 40 30 Instruction Manual with Experiment Guide and Teachers Notes 012-09900B Basic Optics System

More information

Procedure: Geometrical Optics. Theory Refer to your Lab Manual, pages 291 294. Equipment Needed

Procedure: Geometrical Optics. Theory Refer to your Lab Manual, pages 291 294. Equipment Needed Theory Refer to your Lab Manual, pages 291 294. Geometrical Optics Equipment Needed Light Source Ray Table and Base Three-surface Mirror Convex Lens Ruler Optics Bench Cylindrical Lens Concave Lens Rhombus

More information

Rutgers Analytical Physics 750:228, Spring 2016 ( RUPHY228S16 )

Rutgers Analytical Physics 750:228, Spring 2016 ( RUPHY228S16 ) 1 of 13 2/17/2016 5:28 PM Signed in as Weida Wu, Instructor Help Sign Out Rutgers Analytical Physics 750:228, Spring 2016 ( RUPHY228S16 ) My Courses Course Settings University Physics with Modern Physics,

More information

104 Practice Exam 2-3/21/02

104 Practice Exam 2-3/21/02 104 Practice Exam 2-3/21/02 1. Two electrons are located in a region of space where the magnetic field is zero. Electron A is at rest; and electron B is moving westward with a constant velocity. A non-zero

More information

Measure the Distance Between Tracks of CD and DVD

Measure the Distance Between Tracks of CD and DVD University of Technology Laser & Optoelectronics Engineering Department Laser Eng Branch Laser application Lab. The aim of work: Experiment (9) Measure the Distance Between Tracks of CD and DVD 1-measure

More information

Interference of Light Waves

Interference of Light Waves Chapter 37 Interference of Light Waves CHAPTER OUTLINE 37.1 Conditions for Interference 37.2 Young s Double-Slit Experiment 37.3 Intensity Distribution of the Double-Slit Interference Pattern 37.4 Phasor

More information

Convex Mirrors. Ray Diagram for Convex Mirror

Convex Mirrors. Ray Diagram for Convex Mirror Convex Mirrors Center of curvature and focal point both located behind mirror The image for a convex mirror is always virtual and upright compared to the object A convex mirror will reflect a set of parallel

More information

Light, Light Bulbs and the Electromagnetic Spectrum

Light, Light Bulbs and the Electromagnetic Spectrum Light, Light Bulbs and the Electromagnetic Spectrum Spectrum The different wavelengths of electromagnetic waves present in visible light correspond to what we see as different colours. Electromagnetic

More information

Interferometers. OBJECTIVES To examine the operation of several kinds of interferometers. d sin = n (1)

Interferometers. OBJECTIVES To examine the operation of several kinds of interferometers. d sin = n (1) Interferometers The true worth of an experimenter consists in his pursuing not only what he seeks in his experiment, but also what he did not seek. Claude Bernard (1813-1878) OBJECTIVES To examine the

More information

19 - RAY OPTICS Page 1 ( Answers at the end of all questions )

19 - RAY OPTICS Page 1 ( Answers at the end of all questions ) 19 - RAY OPTICS Page 1 1 ) A ish looking up through the water sees the outside world contained in a circular horizon. I the reractive index o water is 4 / 3 and the ish is 1 cm below the surace, the radius

More information

1. You stand two feet away from a plane mirror. How far is it from you to your image? a. 2.0 ft c. 4.0 ft b. 3.0 ft d. 5.0 ft

1. You stand two feet away from a plane mirror. How far is it from you to your image? a. 2.0 ft c. 4.0 ft b. 3.0 ft d. 5.0 ft Lenses and Mirrors 1. You stand two feet away from a plane mirror. How far is it from you to your image? a. 2.0 ft c. 4.0 ft b. 3.0 ft d. 5.0 ft 2. Which of the following best describes the image from

More information

2) A convex lens is known as a diverging lens and a concave lens is known as a converging lens. Answer: FALSE Diff: 1 Var: 1 Page Ref: Sec.

2) A convex lens is known as a diverging lens and a concave lens is known as a converging lens. Answer: FALSE Diff: 1 Var: 1 Page Ref: Sec. Physics for Scientists and Engineers, 4e (Giancoli) Chapter 33 Lenses and Optical Instruments 33.1 Conceptual Questions 1) State how to draw the three rays for finding the image position due to a thin

More information

M01/430/H(3) Name PHYSICS HIGHER LEVEL PAPER 3. Number. Wednesday 16 May 2001 (morning) 1 hour 15 minutes INSTRUCTIONS TO CANDIDATES

M01/430/H(3) Name PHYSICS HIGHER LEVEL PAPER 3. Number. Wednesday 16 May 2001 (morning) 1 hour 15 minutes INSTRUCTIONS TO CANDIDATES INTERNATIONAL BACCALAUREATE BACCALAURÉAT INTERNATIONAL BACHILLERATO INTERNACIONAL M01/430/H(3) PHYSICS HIGHER LEVEL PAPER 3 Wednesday 16 May 2001 (morning) Name Number 1 hour 15 minutes INSTRUCTIONS TO

More information

Physics 202 Problems - Week 8 Worked Problems Chapter 25: 7, 23, 36, 62, 72

Physics 202 Problems - Week 8 Worked Problems Chapter 25: 7, 23, 36, 62, 72 Physics 202 Problems - Week 8 Worked Problems Chapter 25: 7, 23, 36, 62, 72 Problem 25.7) A light beam traveling in the negative z direction has a magnetic field B = (2.32 10 9 T )ˆx + ( 4.02 10 9 T )ŷ

More information

Periodic Wave Phenomena

Periodic Wave Phenomena Name: Periodic Wave Phenomena 1. The diagram shows radar waves being emitted from a stationary police car and reflected by a moving car back to the police car. The difference in apparent frequency between

More information

Ray Optics Minicourse COMSOL Tokyo Conference 2014

Ray Optics Minicourse COMSOL Tokyo Conference 2014 Ray Optics Minicourse COMSOL Tokyo Conference 2014 What is the Ray Optics Module? Add-on to COMSOL Multiphysics Can be combined with any other COMSOL Multiphysics Module Includes one physics interface,

More information

LIGHT REFLECTION AND REFRACTION

LIGHT REFLECTION AND REFRACTION QUESTION BANK IN SCIENCE CLASS-X (TERM-II) 10 LIGHT REFLECTION AND REFRACTION CONCEPTS To revise the laws of reflection at plane surface and the characteristics of image formed as well as the uses of reflection

More information

How can I tell what the polarization axis is for a linear polarizer?

How can I tell what the polarization axis is for a linear polarizer? How can I tell what the polarization axis is for a linear polarizer? The axis of a linear polarizer determines the plane of polarization that the polarizer passes. There are two ways of finding the axis

More information

Crystal Optics of Visible Light

Crystal Optics of Visible Light Crystal Optics of Visible Light This can be a very helpful aspect of minerals in understanding the petrographic history of a rock. The manner by which light is transferred through a mineral is a means

More information

PHY114 S11 Term Exam 3

PHY114 S11 Term Exam 3 PHY4 S Term Exam S. G. Rajeev Mar 2 20 2:0 pm to :45 pm PLEASE write your workshop number and your workshop leader s name at the top of your book, so that you can collect your graded exams at the workshop.

More information

Lenses. Types of Lenses (The word lens is derived from the Latin word lenticula, which means lentil. A lens is in the shape of a lentil.

Lenses. Types of Lenses (The word lens is derived from the Latin word lenticula, which means lentil. A lens is in the shape of a lentil. Lenses Notes_10_ SNC2DE_09-10 Types of Lenses (The word lens is derived from the Latin word lenticula, which means lentil. A lens is in the shape of a lentil. ) Most lenses are made of transparent glass

More information

Solution Derivations for Capa #14

Solution Derivations for Capa #14 Solution Derivations for Capa #4 ) An image of the moon is focused onto a screen using a converging lens of focal length (f = 34.8 cm). The diameter of the moon is 3.48 0 6 m, and its mean distance from

More information

Lab 9: The Acousto-Optic Effect

Lab 9: The Acousto-Optic Effect Lab 9: The Acousto-Optic Effect Incoming Laser Beam Travelling Acoustic Wave (longitudinal wave) O A 1st order diffracted laser beam A 1 Introduction qb d O 2qb rarefractions compressions Refer to Appendix

More information

15 Imaging ESSENTIAL IDEAS. How we see images. Option C. Understanding the human eye

15 Imaging ESSENTIAL IDEAS. How we see images. Option C. Understanding the human eye Option C 15 Imaging ESSENTIAL IDEAS The progress of a wave can be modelled using the ray or the wavefront. The change in wave speed when moving between media changes the shape of the wave. Optical microscopes

More information

waves rays Consider rays of light from an object being reflected by a plane mirror (the rays are diverging): mirror object

waves rays Consider rays of light from an object being reflected by a plane mirror (the rays are diverging): mirror object PHYS1000 Optics 1 Optics Light and its interaction with lenses and mirrors. We assume that we can ignore the wave properties of light. waves rays We represent the light as rays, and ignore diffraction.

More information

Electromagnetic Waves

Electromagnetic Waves . Electromagnetic Waves Concepts and Principles Putting it All Together Electric charges are surrounded by electric fields. When these charges move, the electric field changes. Additionally, these moving

More information

Chapter 36 - Lenses. A PowerPoint Presentation by Paul E. Tippens, Professor of Physics Southern Polytechnic State University

Chapter 36 - Lenses. A PowerPoint Presentation by Paul E. Tippens, Professor of Physics Southern Polytechnic State University Chapter 36 - Lenses A PowerPoint Presentation by Paul E. Tippens, Professor of Physics Southern Polytechnic State University 2007 Objectives: After completing this module, you should be able to: Determine

More information

GRID AND PRISM SPECTROMETERS

GRID AND PRISM SPECTROMETERS FYSA230/2 GRID AND PRISM SPECTROMETERS 1. Introduction Electromagnetic radiation (e.g. visible light) experiences reflection, refraction, interference and diffraction phenomena when entering and passing

More information

Sample Exercise 6.1 Concepts of Wavelength and Frequency

Sample Exercise 6.1 Concepts of Wavelength and Frequency Sample Exercise 6.1 Concepts of Wavelength and Frequency Two electromagnetic waves are represented in the margin. (a) Which wave has the higher frequency? (b) If one wave represents visible light and the

More information

Revision problem. Chapter 18 problem 37 page 612. Suppose you point a pinhole camera at a 15m tall tree that is 75m away.

Revision problem. Chapter 18 problem 37 page 612. Suppose you point a pinhole camera at a 15m tall tree that is 75m away. Revision problem Chapter 18 problem 37 page 612 Suppose you point a pinhole camera at a 15m tall tree that is 75m away. 1 Optical Instruments Thin lens equation Refractive power Cameras The human eye Combining

More information

Superposition and Standing Waves. Solutions of Selected Problems

Superposition and Standing Waves. Solutions of Selected Problems Chapter 18 Superposition and Standing Waves. s of Selected Problems 18.1 Problem 18.8 (In the text book) Two loudspeakers are placed on a wall 2.00 m apart. A listener stands 3.00 m from the wall directly

More information

Physics 117.3 Tutorial #1 January 14 to 25, 2013

Physics 117.3 Tutorial #1 January 14 to 25, 2013 Physics 117.3 Tutorial #1 January 14 to 25, 2013 Rm 130 Physics 8.79. The location of a person s centre of gravity can be determined using the arrangement shown in the figure. A light plank rests on two

More information

P R E A M B L E. Facilitated workshop problems for class discussion (1.5 hours)

P R E A M B L E. Facilitated workshop problems for class discussion (1.5 hours) INSURANCE SCAM OPTICS - LABORATORY INVESTIGATION P R E A M B L E The original form of the problem is an Experimental Group Research Project, undertaken by students organised into small groups working as

More information

1 of 9 2/9/2010 3:38 PM

1 of 9 2/9/2010 3:38 PM 1 of 9 2/9/2010 3:38 PM Chapter 23 Homework Due: 8:00am on Monday, February 8, 2010 Note: To understand how points are awarded, read your instructor's Grading Policy. [Return to Standard Assignment View]

More information

Three Lasers Converging at a Focal Point : A Demonstration

Three Lasers Converging at a Focal Point : A Demonstration Three Lasers Converging at a Focal Point : A Demonstration Overview In this activity, students will see how we can use the property of refraction to focus parallel rays of light. Students will observe

More information

SOLUTIONS TO CONCEPTS CHAPTER 17

SOLUTIONS TO CONCEPTS CHAPTER 17 1. Given that, 400 m < < 700 nm. 1 1 1 700nm 400nm SOLUTIONS TO CONCETS CHATER 17 1 1 1 3 10 c 3 10 (Where, c = spee of light = 3 10 m/s) 7 7 7 7 7 10 4 10 7 10 4 10 4.3 10 14 < c/ < 7.5 10 14 4.3 10 14

More information

Physics 111 Homework Solutions Week #9 - Tuesday

Physics 111 Homework Solutions Week #9 - Tuesday Physics 111 Homework Solutions Week #9 - Tuesday Friday, February 25, 2011 Chapter 22 Questions - None Multiple-Choice 223 A 224 C 225 B 226 B 227 B 229 D Problems 227 In this double slit experiment we

More information

Chapter 2: Electromagnetic Radiation Radiant Energy I

Chapter 2: Electromagnetic Radiation Radiant Energy I Chapter 2: Electromagnetic Radiation Radiant Energy I Goals of Period 2 Section 2.1: To introduce electromagnetic radiation Section 2.2: To discuss the wave model of radiant energy Section 2.3: To describe

More information

RECOMMENDATION ITU-R RA (Question ITU-R 145/7)

RECOMMENDATION ITU-R RA (Question ITU-R 145/7) Rec. ITU-R RA.769-1 1 RECOMMENDATION ITU-R RA.769-1 PROTECTION CRITERIA USED FOR RADIOASTRONOMICAL MEASUREMENTS (Question ITU-R 145/7) (1992-1995) Rec. ITU-R RA.769-1 The ITU Radiocommunication Assembly,

More information

Light and Other Radiations

Light and Other Radiations Light and Other Radiations Visible light is a form of electromagnetic radiation. X-rays, infrared, microwaves and gamma rays are other forms of this type of radiation which make up the electromagnetic

More information

Antennas & Propagation. CS 6710 Spring 2010 Rajmohan Rajaraman

Antennas & Propagation. CS 6710 Spring 2010 Rajmohan Rajaraman Antennas & Propagation CS 6710 Spring 2010 Rajmohan Rajaraman Introduction An antenna is an electrical conductor or system of conductors o Transmission - radiates electromagnetic energy into space o Reception

More information

Optical Communications

Optical Communications Optical Communications Telecommunication Engineering School of Engineering University of Rome La Sapienza Rome, Italy 2005-2006 Lecture #2, May 2 2006 The Optical Communication System BLOCK DIAGRAM OF

More information

Question based on Refraction and Refractive index. Glass Slab, Lateral Shift.

Question based on Refraction and Refractive index. Glass Slab, Lateral Shift. Question based on Refraction and Refractive index. Glass Slab, Lateral Shift. Q.What is refraction of light? What are the laws of refraction? Ans: Deviation of ray of light from its original path when

More information

VISIBLE SPECTROSCOPY

VISIBLE SPECTROSCOPY VISIBLE SPECTROSCOPY Visible spectroscopy is the study of the interaction of radiation from the visible part (λ = 380-720 nm) of the electromagnetic spectrum with a chemical species. Quantifying the interaction

More information

Determination of Focal Length of A Converging Lens and Mirror

Determination of Focal Length of A Converging Lens and Mirror Physics 41- Lab 5 Determination of Focal Length of A Converging Lens and Mirror Objective: Apply the thin-lens equation and the mirror equation to determine the focal length of a converging (biconvex)

More information

Interference and Diffraction

Interference and Diffraction Chapter 14 nterference and Diffraction 14.1 Superposition of Waves... 14-14. Young s Double-Slit Experiment... 14-4 Example 14.1: Double-Slit Experiment... 14-7 14.3 ntensity Distribution... 14-8 Example

More information

Science In Action 8 Unit C - Light and Optical Systems. 1.1 The Challenge of light

Science In Action 8 Unit C - Light and Optical Systems. 1.1 The Challenge of light 1.1 The Challenge of light 1. Pythagoras' thoughts about light were proven wrong because it was impossible to see A. the light beams B. dark objects C. in the dark D. shiny objects 2. Sir Isaac Newton

More information

UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics

UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics Physics 111.6 MIDTERM TEST #4 March 15, 2007 Time: 90 minutes NAME: (Last) Please Print (Given) STUDENT NO.: LECTURE SECTION (please

More information

Development of Optical Wave Microphone Measuring Sound Waves with No Diaphragm

Development of Optical Wave Microphone Measuring Sound Waves with No Diaphragm Progress In Electromagnetics Research Symposium Proceedings, Taipei, March 5 8, 3 359 Development of Optical Wave Microphone Measuring Sound Waves with No Diaphragm Yoshito Sonoda, Takashi Samatsu, and

More information

Lab O3: Snell's Law and the Index of Refraction

Lab O3: Snell's Law and the Index of Refraction O3.1 Lab O3: Snell's Law and the Index of Refraction Introduction. The bending of a light ray as it asses from air to water is determined by Snell's law. This law also alies to the bending of light by

More information

PHYSICS 202 Practice Exam Waves, Sound, Reflection and Refraction. Name. Constants and Conversion Factors

PHYSICS 202 Practice Exam Waves, Sound, Reflection and Refraction. Name. Constants and Conversion Factors PHYSICS 202 Practice Exam Waves, Sound, Reflection and Refraction Name Constants and Conversion Factors Speed of sound in Air œ $%!7Î= "'!*7/>/

More information

STOP for science. Light is a wave. Like waves in water, it can be characterized by a wavelength.

STOP for science. Light is a wave. Like waves in water, it can be characterized by a wavelength. INTRODUCTION Most students have encountered rainbows, either spotting them directly on those special days when the raindrops fall while the Sun still finds cloudless regions to peek through, or at least

More information

9/16 Optics 1 /11 GEOMETRIC OPTICS

9/16 Optics 1 /11 GEOMETRIC OPTICS 9/6 Optics / GEOMETRIC OPTICS PURPOSE: To review the basics of geometric optics and to observe the function of some simple and compound optical devices. APPARATUS: Optical bench, lenses, mirror, target

More information

Physics 116. Nov 4, 2011. Session 22 Review: ray optics. R. J. Wilkes Email: ph116@u.washington.edu

Physics 116. Nov 4, 2011. Session 22 Review: ray optics. R. J. Wilkes Email: ph116@u.washington.edu Physics 116 Session 22 Review: ray optics Nov 4, 2011 R. J. Wilkes Email: ph116@u.washington.edu ! Exam 2 is Monday!! All multiple choice, similar to HW problems, same format as Exam 1!!! Announcements

More information

Code number given on the right hand side of the question paper should be written on the title page of the answerbook by the candidate.

Code number given on the right hand side of the question paper should be written on the title page of the answerbook by the candidate. Series ONS SET-1 Roll No. Candiates must write code on the title page of the answer book Please check that this question paper contains 16 printed pages. Code number given on the right hand side of the

More information

Refractive Index Measurement Principle

Refractive Index Measurement Principle Refractive Index Measurement Principle Refractive index measurement principle Introduction Detection of liquid concentrations by optical means was already known in antiquity. The law of refraction was

More information

Friday 18 January 2013 Morning

Friday 18 January 2013 Morning Friday 18 January 2013 Morning AS GCE PHYSICS B (ADVANCING PHYSICS) G492/01 Understanding Processes / Experimentation and Data Handling *G411640113* Candidates answer on the Question Paper. OCR supplied

More information

RESOLVING POWER OF A READING TELESCOPE

RESOLVING POWER OF A READING TELESCOPE 96 Lab Experiments Experiment-255 RESOLVING POWER OF A READING TELESCOPE S Dr Jeethendra Kumar P K KamalJeeth Instrumentation & Service Unit, No-60, TATA Nagar, Bangalore-560 092, INDIA. Email:jeeth_kjisu@rediffmail.com

More information