Question 1

The index of refraction of a sample of glass cannot be determined by measuring the

Accepted Answer

A)   Brewster's angle.
B)   critical angle.
C)   angle of minimum deviation.
D)   ratio of true to apparent depth.
E)   angle of dispersion between red and violet light.F) None of the above
G) A) and C)

Question 2

A ray of light passes from air into water, striking the surface of the water with an angle of incidence of 45º. Which of the following four quantities change as the light enters the water: 1)  wavelength, 2)  frequency, 3)  speed of propagation, and 4)  direction of propagation?

Accepted Answer

A)   1 and 2 only
B)   2, 3, and 4 only
C)   1, 3, and 4 only
D)   3 and 4 only
E)   1, 2, 3, and 4F) A) and B)
G) None of the above

Question 3

A 60° prism has a refractive index of 1.52. Calculate the angle of incidence for the initial light ray that is then refracted inside the prism and just undergoes total internal reflection at the opposite face of the prism.

Accepted Answer

A)   41.1°
B)   18.9°
C)   29.4°
D)   30.6°
E)   60.6°F) A) and E)
G) C) and D)

Question 4

Diffraction of sound waves is more readily observable than that of light waves because

Accepted Answer

A)   sound waves are longitudinal and not transverse.
B)   sound waves have a higher frequency than light waves.
C)   sound waves have a lower velocity than light waves.
D)   sound waves have longer wavelengths than do light waves.
E)   interference occurs more readily for longitudinal waves.F) A) and B)
G) A) and C)

Question 5

The eyes of a person with normal vision have an angular resolution of 1/60) o. For a person who cannot resolve as many details on an eye chart as a person with normal vision, that angle will

Accepted Answer

A)   increase.
B)   decrease.
C)   remain unchanged.
D)   change, but whether it increases or decreases depends on if the person is nearsighted or farsighted.
E)   There is not enough information to determine what will happen.F) C) and D)
G) B) and C)

Question 6

Two side-by-side coherent light sources radiate at 480 nm. At a point in space where the path difference to these two sources is 50 nm, the phase difference could be

Accepted Answer

A)   0.238 radians.
B)   0.375 radians.
C)   0.466 radians.
D)   0.582 radians.
E)   0.654 radians.F) C) and E)
G) All of the above

Question 7

The minimum angle of deviation produced by a glass prism n = 1.70 for the light used)  whose apex angle is 45º is approximately

Accepted Answer

A)   32º.
B)   36º.
C)   26º.
D)   18º.
E)   45º.F) B) and C)
G) C) and E)

Question 8

The interference pattern is from a spherical lens placed on a flat reflecting surface using a monochromatic light of wavelength λ = 550 nm. If the distance from the center to A is 0.6 mm, the radius of curvature of the lens is

Accepted Answer

A)   41.3 cm.
B)   82.5 cm.
C)   18.7 cm.
D)   37.4 cm.
E)   26.2 cm.F) A) and B)
G) B) and D)

Question 9

The interference and diffraction envelopes of a double slit are shown separately but to the same scale in the figure. For this arrangement, the number of fringes in the second diffraction maximum is

Accepted Answer

A)   3.
B)   4.
C)   5.
D)   7.
E)   0.F) A) and B)
G) A) and C)

Question 10

Two polarizers have their transmission axes at an angle θ. Unpolarized light of intensity I is incident on the first polarizer. What is the intensity of the light transmitted by the second polarizer?

Accepted Answer

A)   I cos2 θ
B)   0.5I cos2 θ
C)   0.25I cos2 θ
D)   I cos θ
E)   0.25I cos θF) A) and C)
G) All of the above

Question 11

Laser light passes through a circular aperture. If the brightness of the light is increased, the width of the central dark fringe will

Accepted Answer

A)   increase.
B)   decrease.
C)   oscillate.
D)   remain unchanged.
E)   There is not enough information to determine what will happen.F) A) and B)
G) A) and C)

Question 12

A light wave traveling in air impinges on an amber plate at an angle of incidence of 60º. If the angle of refraction is 34º, the velocity of light in amber must be approximately

Accepted Answer

A)   0.52 × 108 m/s.
B)   4.64 × 108 m/s.
C)   1.86 × 103 m/s.
D)   2.09 × 108 m/s.
E)   4.64 × 1010 m/s.F) A) and D)
G) A) and C)

Question 13

8 m/s. B)  2.24 × 108 m/s. C)  3.00 × 108 m/s. D)  4.02 × 108 m/s. E)  2.50 × 108 m/s." class="answers-bank-image d-inline" rel="preload" > A ray of light is shown reflected and refracted at the surface of a liquid. From the diagram you can determine that the speed of light in this liquid is approximately

Accepted Answer

A)   1.83 × 108 m/s.
B)   2.24 × 108 m/s.
C)   3.00 × 108 m/s.
D)   4.02 × 108 m/s.
E)   2.50 × 108 m/s.F) C) and D)
G) B) and E)

Question 14

You place a point source of light at the bottom of a pool of water 1.00 m deep. The source emits rays upward in all directions. You notice that a circle of light is formed by the rays that are refracted into the air and that the rays outside of this circle are reflected back into the water. The index of refraction of water is 1.33. The radius R of the circle at the surface of the water is approximately

Accepted Answer

A)   0.75 m.
B)   1.00 m.
C)   1.13 m.
D)   1.33 m.
E)   infinite.F) None of the above
G) A) and C)

Question 15

Two polarizing films are crossed with their transmission axes making an angle of θ = 20° with each other. The vectors that represent the plane-polarized wave train passed by the second polarizing film are

Accepted Answer

A)   1 - 1'.
B)   2 - 2'.
C)   3 - 3'.
D)   4 - 4'.
E)   None of these is correct because no light passes through the second disk.F) A) and B)
G) A) and C)

Question 16

An air prism is immersed in water. A ray of monochromatic light strikes one face as shown. The emerging ray is

Accepted Answer

A)   1.
B)   2.
C)   3.
D)   4.
E)   5.F) A) and D)
G) C) and E)

Question 17

When the slits in Young's experiment are moved closer together, the fringes

Accepted Answer

A)   remain unchanged.
B)   move closer together.
C)   move further apart.
D)   are less intense.
E)   are none of the above.F) A) and D)
G) A) and C)

Question 18

The energy of an electromagnetic wave that is in the red region of the visible spectrum is approximately

Accepted Answer

A)   1 eV.
B)   2 eV.
C)   3 eV.
D)   4 eV.
E)   5 eV.F) B) and D)
G) C) and D)

Question 19

The wavelength of light that has a photon energy of 4.25 eV is

Accepted Answer

A)   292 nm.
B)   973 nm.
C)   706 nm.
D)   1559 nm.
E)   None of these is correct.F) B) and C)
G) B) and D)

Question 20

In dealing with the diffraction pattern of a single slit, we are usually interested in the location of the first minimum in light intensity because

Accepted Answer

A)   it is the only one that can be determined accurately.
B)   it is the only one for which the small-angle approximation holds.
C)   nearly all the light energy is contained in the central maximum.
D)   it is the only one for which the location is directly proportional to the wavelength of the light.
E)   it is the only one that can be described by Fraunhofer diffraction.F) B) and C)
G) A) and D)

Exam 23: Wave Properties of Light

The energy of an electromagnetic wave that is in the red region of the visible spectrum is approximately

Correct Answer
verified

When the slits in Young's experiment are moved closer together, the fringes

Correct Answer
verified

A light wave traveling in air impinges on an amber plate at an angle of incidence of 60º. If the angle of refraction is 34º, the velocity of light in amber must be approximately

Correct Answer
verified

Correct Answer
verified

The interference pattern is from a spherical lens placed on a flat reflecting surface using a monochromatic light of wavelength λ = 550 nm. If the distance from the center to A is 0.6 mm, the radius of curvature of the lens is

Correct Answer
verified

Two polarizing films are crossed with their transmission axes making an angle of θ = 20° with each other. The vectors that represent the plane-polarized wave train passed by the second polarizing film are

Correct Answer
verified

Two side-by-side coherent light sources radiate at 480 nm. At a point in space where the path difference to these two sources is 50 nm, the phase difference could be

Correct Answer
verified

Correct Answer
verified

An air prism is immersed in water. A ray of monochromatic light strikes one face as shown. The emerging ray is

Correct Answer
verified

Diffraction of sound waves is more readily observable than that of light waves because

Correct Answer
verified

The index of refraction of a sample of glass cannot be determined by measuring the

Correct Answer
verified

The wavelength of light that has a photon energy of 4.25 eV is

Correct Answer
verified

Laser light passes through a circular aperture. If the brightness of the light is increased, the width of the central dark fringe will

Correct Answer
verified

A ray of light passes from air into water, striking the surface of the water with an angle of incidence of 45º. Which of the following four quantities change as the light enters the water: 1) wavelength, 2) frequency, 3) speed of propagation, and 4) direction of propagation?

Correct Answer
verified

The minimum angle of deviation produced by a glass prism n = 1.70 for the light used) whose apex angle is 45º is approximately

Correct Answer
verified

Two polarizers have their transmission axes at an angle θ. Unpolarized light of intensity I is incident on the first polarizer. What is the intensity of the light transmitted by the second polarizer?

Correct Answer
verified

In dealing with the diffraction pattern of a single slit, we are usually interested in the location of the first minimum in light intensity because

Correct Answer
verified

The eyes of a person with normal vision have an angular resolution of 1/60) ^o. For a person who cannot resolve as many details on an eye chart as a person with normal vision, that angle will

Correct Answer
verified

Correct Answer
verified

A 60° prism has a refractive index of 1.52. Calculate the angle of incidence for the initial light ray that is then refracted inside the prism and just undergoes total internal reflection at the opposite face of the prism.

Correct Answer
verified

Exam 23: Wave Properties of Light

The energy of an electromagnetic wave that is in the red region of the visible spectrum is approximately

Correct AnswerverifiedShow Answer

When the slits in Young's experiment are moved closer together, the fringes

Correct AnswerverifiedShow Answer

A light wave traveling in air impinges on an amber plate at an angle of incidence of 60º. If the angle of refraction is 34º, the velocity of light in amber must be approximately

Correct AnswerverifiedShow Answer

A ray of light is shown reflected and refracted at the surface of a liquid. From the diagram you can determine that the speed of light in this liquid is approximately

Correct AnswerverifiedShow Answer

The interference pattern is from a spherical lens placed on a flat reflecting surface using a monochromatic light of wavelength λ = 550 nm. If the distance from the center to A is 0.6 mm, the radius of curvature of the lens is

Correct AnswerverifiedShow Answer

Two polarizing films are crossed with their transmission axes making an angle of θ = 20° with each other. The vectors that represent the plane-polarized wave train passed by the second polarizing film are

Correct AnswerverifiedShow Answer

Two side-by-side coherent light sources radiate at 480 nm. At a point in space where the path difference to these two sources is 50 nm, the phase difference could be

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

An air prism is immersed in water. A ray of monochromatic light strikes one face as shown. The emerging ray is

Correct AnswerverifiedShow Answer

Diffraction of sound waves is more readily observable than that of light waves because

Correct AnswerverifiedShow Answer

The index of refraction of a sample of glass cannot be determined by measuring the

Correct AnswerverifiedShow Answer

The wavelength of light that has a photon energy of 4.25 eV is

Correct AnswerverifiedShow Answer

Laser light passes through a circular aperture. If the brightness of the light is increased, the width of the central dark fringe will

Correct AnswerverifiedShow Answer

A ray of light passes from air into water, striking the surface of the water with an angle of incidence of 45º. Which of the following four quantities change as the light enters the water: 1) wavelength, 2) frequency, 3) speed of propagation, and 4) direction of propagation?

Correct AnswerverifiedShow Answer

The minimum angle of deviation produced by a glass prism n = 1.70 for the light used) whose apex angle is 45º is approximately

Correct AnswerverifiedShow Answer

Two polarizers have their transmission axes at an angle θ. Unpolarized light of intensity I is incident on the first polarizer. What is the intensity of the light transmitted by the second polarizer?

Correct AnswerverifiedShow Answer

In dealing with the diffraction pattern of a single slit, we are usually interested in the location of the first minimum in light intensity because

Correct AnswerverifiedShow Answer

The eyes of a person with normal vision have an angular resolution of 1/60) o. For a person who cannot resolve as many details on an eye chart as a person with normal vision, that angle will

Correct AnswerverifiedShow Answer

The interference and diffraction envelopes of a double slit are shown separately but to the same scale in the figure. For this arrangement, the number of fringes in the second diffraction maximum is

Correct AnswerverifiedShow Answer

A 60° prism has a refractive index of 1.52. Calculate the angle of incidence for the initial light ray that is then refracted inside the prism and just undergoes total internal reflection at the opposite face of the prism.

Correct AnswerverifiedShow Answer

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The eyes of a person with normal vision have an angular resolution of 1/60) ^o. For a person who cannot resolve as many details on an eye chart as a person with normal vision, that angle will

Correct Answer
verified

Correct Answer
verified

Correct Answer
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