Question 1

If the polarizing angle for diamond is 67.5°,what is the index of refraction of this material?

Accepted Answer

A)  2.00 
B)  2.20 
C)  2.41 
D)  2.65 
A)  2.00 
B)  2.20 
C)  2.41 
D)  2.65

Question 2

A diffraction grating with 9,250 lines/cm will exhibit the first order maximum for light of wavelength 503 nm at what angle? (1 nm = 10−9 m)

Accepted Answer

A)  0.48° 
B)  0.27° 
C)  55.5° 
D)  27.7° 
E)  ​13.4° 
A)  0.48° 
B)  0.27° 
C)  55.5° 
D)  27.7° 
E)  ​13.4°

Question 3

Two beams of coherent light are shining on the same piece of white paper.With respect to the crests and troughs of such waves,darkness will occur on the paper where:

Accepted Answer

A)  the crest from one wave overlaps with the crest from the other. 
B)  the crest from one wave overlaps with the trough from the other. 
C)  the troughs from both waves overlap. 
D)  darkness cannot occur as the two waves are coherent. 
A)  the crest from one wave overlaps with the crest from the other. 
B)  the crest from one wave overlaps with the trough from the other. 
C)  the troughs from both waves overlap. 
D)  darkness cannot occur as the two waves are coherent.

Question 4

In a Young's double-slit experiment,how many maxima occur between the 5th order maxima?

Accepted Answer

A)  8 
B)  9 
C)  10 
D)  ​25 
E)  ​Three more than the number of minima. 
A)  8 
B)  9 
C)  10 
D)  ​25 
E)  ​Three more than the number of minima.

Question 5

A puddle of water (n = 1.33)is covered with a very thin layer of oil (n = 1.20).How thick is the oil in the region that strongly reflects light with a wavelength of 636 nm?

Accepted Answer

A)  133 nm 
B)  265 nm 
C)  530 nm 
D)  353 nm 
E)  ​286 nm 
A)  133 nm 
B)  265 nm 
C)  530 nm 
D)  353 nm 
E)  ​286 nm

Question 6

If a wave from one slit of a Young's double-slit set-up arrives at a point on the screen one wavelength behind the wave from the other slit,what is observed at that point?

Accepted Answer

A)  dark fringe 
B)  bright fringe 
C)  multi-colored fringe 
D)  gray fringe,neither dark nor bright 
A)  dark fringe 
B)  bright fringe 
C)  multi-colored fringe 
D)  gray fringe,neither dark nor bright

Question 7

A beam of polarized light of intensity I0 passes through a sheet of ideal polarizing material.The polarization axis of the beam and the transmission axis of the sheet differ by 10°.What is the intensity of the emerging light?

Accepted Answer

A)  0.98 I0 
B)  0.97 I0 
C)  0.70 I0 
D)  1.00 I0 
E)  ​0.84 I0 
A)  0.98 I0 
B)  0.97 I0 
C)  0.70 I0 
D)  1.00 I0 
E)  ​0.84 I0

Question 8

Upon reflection,light undergoes a 180° phase change:

Accepted Answer

A)  always. 
B)  if the incident medium has the higher index of refraction. 
C)  if the incident medium has the lower index of refraction. 
D)  whenever the incident angle is less than the critical angle. 
A)  always. 
B)  if the incident medium has the higher index of refraction. 
C)  if the incident medium has the lower index of refraction. 
D)  whenever the incident angle is less than the critical angle.

Question 9

A Young's interference experiment is conducted with Blue argon laser light (λ = 499 nm).The separation between the slits is 0.60 mm,and the interference pattern appears on a screen 4.3 m away.What is the spacing between the bright fringes? (1 nm = 10−9 m)

Accepted Answer

A)  3.0 mm 
B)  3.6 mm 
C)  12 mm 
D)  7.2 mm 
E)  ​2.1 mm 
A)  3.0 mm 
B)  3.6 mm 
C)  12 mm 
D)  7.2 mm 
E)  ​2.1 mm

Question 10

Sunlight reflected from a smooth ice surface is completely polarized.Determine the angle of incidence.(nice = 1.309)

Accepted Answer

A)  25.60° 
B)  47.89° 
C)  52.62° 
D)  56.26° 
A)  25.60° 
B)  47.89° 
C)  52.62° 
D)  56.26°

Question 11

A wavelength of 465 nm yields a first order maximum at 26.6° with a grating.At what angle will the third order maximum appear for this wavelength?

Accepted Answer

A)  13° 
B)  90° 
C)  -26.6° 
D)  No third order maximum exists in this case. 
E)  ​1.50° 
A)  13° 
B)  90° 
C)  -26.6° 
D)  No third order maximum exists in this case. 
E)  ​1.50°

Question 12

Light of wavelength 407 nm is incident on a slit of width 0.12 mm,and a diffraction pattern is produced on a screen that is 1.50 m from the slit.What is the width of the central bright fringe? (1 nm = 10−9 m)

Accepted Answer

A)  0.51 cm 
B)  1.02 cm 
C)  10.2 cm 
D)  1.53 cm 
E)  ​15.3 cm 
A)  0.51 cm 
B)  1.02 cm 
C)  10.2 cm 
D)  1.53 cm 
E)  ​15.3 cm

Question 13

In a Young's double-slit experiment,what happens to the angular separation between the fringes when the wavelength is increased at the same time that the slit separation is decreased?

Accepted Answer

A)  It increases. 
B)  It decreases. 
C)  It stays the same. 
D)  The relative sizes of the changes need to be known before a definite answer can be given. 
A)  It increases. 
B)  It decreases. 
C)  It stays the same. 
D)  The relative sizes of the changes need to be known before a definite answer can be given.

Question 14

Interference effects observed in the early 1800s were instrumental in supporting a concept of the existence of which property of light?

Accepted Answer

A)  polarization 
B)  particle nature 
C)  wave nature 
D)  electromagnetic character 
A)  polarization 
B)  particle nature 
C)  wave nature 
D)  electromagnetic character

Question 15

A Young's double-slit apparatus is set up.The source wavelength is 442 nm,and the double-slit spacing is 0.0404 mm.At what distance from the double slits should the screen be placed if the spacing between alternating bright fringes is to be 2.80 cm? (1 nm = 10−9 m)

Accepted Answer

A)  256 m 
B)  2.56 m 
C)  0.326 m 
D)  234 m 
E)  ​2.56 m 
A)  256 m 
B)  2.56 m 
C)  0.326 m 
D)  234 m 
E)  ​2.56 m

Question 16

A Young's double-slit apparatus is set up.A screen is positioned 1.50 m from the double slits,and the spacing between the two slits is 0.0392 mm.The distance between alternating bright fringes is 1.48 cm.What is the light source wavelength? (1 nm = 10−9 m)

Accepted Answer

A)  382 nm 
B)  383 nm 
C)  352 nm 
D)  387 nm 
E)  ​318 nm 
A)  382 nm 
B)  383 nm 
C)  352 nm 
D)  387 nm 
E)  ​318 nm

Question 17

In a Young's double-slit experiment,both the wavelength and the slit separation are increased by 50%.What happens to the distance between two adjacent bright fringes?

Accepted Answer

A)  It increases by 50%. 
B)  It decreases by 50%. 
C)  The distance stays the same. 
D)  The distance increases by a 100% or more. 
A)  It increases by 50%. 
B)  It decreases by 50%. 
C)  The distance stays the same. 
D)  The distance increases by a 100% or more.

Question 18

The critical angle for sapphire surrounded by air is 34.4°.Calculate the polarizing angle for sapphire.

Accepted Answer

A)  60.5° 
B)  59.7° 
C)  58.6° 
D)  56.3° 
A)  60.5° 
B)  59.7° 
C)  58.6° 
D)  56.3°

Question 19

Laser light sent through a double slit produces an interference patter on a screen 3.00 m from the slits.If the tenth order maximum occurs at an angle of 41.9°,at what angle does the third order maximum occur?

Accepted Answer

A)  No third order maximum occurs. 
B)  0.20° 
C)  11.6° 
D)  12.6° 
E)  ​Not enough information is given. 
A)  No third order maximum occurs. 
B)  0.20° 
C)  11.6° 
D)  12.6° 
E)  ​Not enough information is given.

Question 20

Light of wavelength 627 nm is incident on a slit of width 0.51 mm,and a diffraction pattern is produced on a screen that is 1.9 m from the slit.What is the distance of the second dark fringe from the center of the bright fringe? (1 nm = 10−9 m)

Accepted Answer

A)  0.23 cm 
B)  0.47 cm 
C)  0.92 cm 
D)  0.89 cm 
E)  ​0.93 cm 
A)  0.23 cm 
B)  0.47 cm 
C)  0.92 cm 
D)  0.89 cm 
E)  ​0.93 cm

Exam 24: Wave Optics

If the polarizing angle for diamond is 67.5°,what is the index of refraction of this material?

A diffraction grating with 9,250 lines/cm will exhibit the first order maximum for light of wavelength 503 nm at what angle? (1 nm = 10−9 m)

Two beams of coherent light are shining on the same piece of white paper.With respect to the crests and troughs of such waves,darkness will occur on the paper where:

In a Young's double-slit experiment,how many maxima occur between the 5th order maxima?

A puddle of water (n = 1.33)is covered with a very thin layer of oil (n = 1.20).How thick is the oil in the region that strongly reflects light with a wavelength of 636 nm?

If a wave from one slit of a Young's double-slit set-up arrives at a point on the screen one wavelength behind the wave from the other slit,what is observed at that point?

A beam of polarized light of intensity I0 passes through a sheet of ideal polarizing material.The polarization axis of the beam and the transmission axis of the sheet differ by 10°.What is the intensity of the emerging light?

Upon reflection,light undergoes a 180° phase change:

A Young's interference experiment is conducted with Blue argon laser light (λ = 499 nm).The separation between the slits is 0.60 mm,and the interference pattern appears on a screen 4.3 m away.What is the spacing between the bright fringes? (1 nm = 10−9 m)

Sunlight reflected from a smooth ice surface is completely polarized.Determine the angle of incidence.(nice = 1.309)

A wavelength of 465 nm yields a first order maximum at 26.6° with a grating.At what angle will the third order maximum appear for this wavelength?

Light of wavelength 407 nm is incident on a slit of width 0.12 mm,and a diffraction pattern is produced on a screen that is 1.50 m from the slit.What is the width of the central bright fringe? (1 nm = 10−9 m)

In a Young's double-slit experiment,what happens to the angular separation between the fringes when the wavelength is increased at the same time that the slit separation is decreased?

Interference effects observed in the early 1800s were instrumental in supporting a concept of the existence of which property of light?

A Young's double-slit apparatus is set up.The source wavelength is 442 nm,and the double-slit spacing is 0.0404 mm.At what distance from the double slits should the screen be placed if the spacing between alternating bright fringes is to be 2.80 cm? (1 nm = 10−9 m)

A Young's double-slit apparatus is set up.A screen is positioned 1.50 m from the double slits,and the spacing between the two slits is 0.0392 mm.The distance between alternating bright fringes is 1.48 cm.What is the light source wavelength? (1 nm = 10−9 m)

In a Young's double-slit experiment,both the wavelength and the slit separation are increased by 50%.What happens to the distance between two adjacent bright fringes?

The critical angle for sapphire surrounded by air is 34.4°.Calculate the polarizing angle for sapphire.

Laser light sent through a double slit produces an interference patter on a screen 3.00 m from the slits.If the tenth order maximum occurs at an angle of 41.9°,at what angle does the third order maximum occur?

Light of wavelength 627 nm is incident on a slit of width 0.51 mm,and a diffraction pattern is produced on a screen that is 1.9 m from the slit.What is the distance of the second dark fringe from the center of the bright fringe? (1 nm = 10−9 m)

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Energy: Part A

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF

Direct-Current Circuits Sources of EMF: Part A

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics: Part A

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

A diffraction grating with 9,250 lines/cm will exhibit the first order maximum for light of wavelength 503 nm at what angle? (1 nm = 10−⁹ m)

In a Young's double-slit experiment,how many maxima occur between the 5^th order maxima?

A beam of polarized light of intensity I₀ passes through a sheet of ideal polarizing material.The polarization axis of the beam and the transmission axis of the sheet differ by 10°.What is the intensity of the emerging light?

A Young's interference experiment is conducted with Blue argon laser light (λ = 499 nm).The separation between the slits is 0.60 mm,and the interference pattern appears on a screen 4.3 m away.What is the spacing between the bright fringes? (1 nm = 10−⁹ m)

Sunlight reflected from a smooth ice surface is completely polarized.Determine the angle of incidence.(n_ice = 1.309)

Light of wavelength 407 nm is incident on a slit of width 0.12 mm,and a diffraction pattern is produced on a screen that is 1.50 m from the slit.What is the width of the central bright fringe? (1 nm = 10−⁹ m)

A Young's double-slit apparatus is set up.The source wavelength is 442 nm,and the double-slit spacing is 0.0404 mm.At what distance from the double slits should the screen be placed if the spacing between alternating bright fringes is to be 2.80 cm? (1 nm = 10−⁹ m)

A Young's double-slit apparatus is set up.A screen is positioned 1.50 m from the double slits,and the spacing between the two slits is 0.0392 mm.The distance between alternating bright fringes is 1.48 cm.What is the light source wavelength? (1 nm = 10−⁹ m)

Light of wavelength 627 nm is incident on a slit of width 0.51 mm,and a diffraction pattern is produced on a screen that is 1.9 m from the slit.What is the distance of the second dark fringe from the center of the bright fringe? (1 nm = 10−⁹ m)