Question 1

Light from two closely-spaced stars cannot produce a steady interference pattern due to

Accepted Answer

A) incoherence. 
B) the inherent instability of the atmosphere. 
C) their different radial distances. 
D) their non-point like natures. 
E) closely spaced stars not producing interference patterns. 
A) incoherence. 
B) the inherent instability of the atmosphere. 
C) their different radial distances. 
D) their non-point like natures. 
E) closely spaced stars not producing interference patterns.

Question 2

A pair of crossed Polaroids will transmit light

Accepted Answer

A) of sufficiently long wavelengths. 
B) that itself is polarized. 
C) if a third Polaroid at about 45 degrees is inserted between the two. 
A) of sufficiently long wavelengths. 
B) that itself is polarized. 
C) if a third Polaroid at about 45 degrees is inserted between the two.

Question 3

Monochromatic light is light of a single

Accepted Answer

A) wavelength. 
B) frequency. 
C) color. 
D) all of the above 
E) none of the above 
A) wavelength. 
B) frequency. 
C) color. 
D) all of the above 
E) none of the above

Question 4

A thin film appears yellow when illuminated with white light. The color being cancelled by destructive interference is

Accepted Answer

A) red. 
B) green. 
C) white. 
D) blue. 
E) none of the above 
A) red. 
B) green. 
C) white. 
D) blue. 
E) none of the above

Question 5

Thomas Young's two-source interference patterns demonstrate the

Accepted Answer

A) particle nature of light. 
B) wave nature of light. 
C) both of these 
D) neither of these 
A) particle nature of light. 
B) wave nature of light. 
C) both of these 
D) neither of these

Question 6

In the double-slit experiment, fringes are more widely spaced when illumination is with monochromatic

Accepted Answer

A) low-frequency light. 
B) high-frequency light. 
C) polarized light. 
D) none of the above 
A) low-frequency light. 
B) high-frequency light. 
C) polarized light. 
D) none of the above

Question 7

Light travels through non-cubic transparent crystals

Accepted Answer

A) in mutually perpendicular directions. 
B) without refracting. 
C) and becomes polarized in the process. 
D) at different speeds along different optic axes. 
E) none of the above 
A) in mutually perpendicular directions. 
B) without refracting. 
C) and becomes polarized in the process. 
D) at different speeds along different optic axes. 
E) none of the above

Question 8

A razor blade nicely shows diffraction fringes when illuminated with

Accepted Answer

A) ultraviolet light. 
B) monochromatic light. 
C) sunlight. 
D) all of the above 
E) none of the above 
A) ultraviolet light. 
B) monochromatic light. 
C) sunlight. 
D) all of the above 
E) none of the above

Question 9

The glare seen from water is largely

Accepted Answer

A) horizontally polarized. 
B) vertically polarized. 
C) unpolarized. 
A) horizontally polarized. 
B) vertically polarized. 
C) unpolarized.

Question 10

Radio waves that diffract more around small buildings are

Accepted Answer

A) AM. 
B) FM. 
C) both diffract equally 
A) AM. 
B) FM. 
C) both diffract equally

Question 11

Light will pass through a pair of Polaroids when their axes are

Accepted Answer

A) 45 degrees to each other. 
B) parallel. 
C) either of these 
D) neither of these 
A) 45 degrees to each other. 
B) parallel. 
C) either of these 
D) neither of these

Question 12

A dolphin perceives greater detail by emitting sounds of

Accepted Answer

A) lower frequency. 
B) higher frequency. 
C) greater intensity. 
D) greater speed. 
E) none of the above 
A) lower frequency. 
B) higher frequency. 
C) greater intensity. 
D) greater speed. 
E) none of the above

Question 13

Colors seen when gasoline forms a thin film on water illustrate

Accepted Answer

A) refraction. 
B) reflection. 
C) dispersion. 
D) polarization. 
E) interference. 
A) refraction. 
B) reflection. 
C) dispersion. 
D) polarization. 
E) interference.

Question 14

Newton's rings will be closer together if illuminated with

Accepted Answer

A) red light. 
B) blue light. 
C) white light. 
D) none of the above 
A) red light. 
B) blue light. 
C) white light. 
D) none of the above

Question 15

A painting looks less flat when viewed with

Accepted Answer

A) one eye. 
B) both eyes. 
C) Polaroid glasses. 
A) one eye. 
B) both eyes. 
C) Polaroid glasses.

Question 16

When waves from a pair of closely-spaced slits arrive in phase

Accepted Answer

A) a bright fringe is produced. 
B) a dark fringe is produced. 
C) both bright and dark fringes are produced. 
D) none of the above 
A) a bright fringe is produced. 
B) a dark fringe is produced. 
C) both bright and dark fringes are produced. 
D) none of the above

Question 17

Parallax is evident when you view objects

Accepted Answer

A) with one eye. 
B) with both eyes. 
C) with one or both eyes. 
D) in a completely dark room. 
A) with one eye. 
B) with both eyes. 
C) with one or both eyes. 
D) in a completely dark room.

Question 18

A thin film appears magenta when illuminated with white light. The color being cancelled by destructive interference is

Accepted Answer

A) red. 
B) green. 
C) white. 
D) blue. 
E) none of the above 
A) red. 
B) green. 
C) white. 
D) blue. 
E) none of the above

Question 19

The function of polarizing filters in viewing 3-D slides or movies is to provide each eye

Accepted Answer

A) the ability to see parallax. 
B) a balanced intensity. 
C) an independent left or right-eye view. 
D) a stereoscopic view. 
E) with light polarized at right angles to each other. 
A) the ability to see parallax. 
B) a balanced intensity. 
C) an independent left or right-eye view. 
D) a stereoscopic view. 
E) with light polarized at right angles to each other.

Question 20

Interference is a property of

Accepted Answer

A) light waves. 
B) sound waves. 
C) water waves. 
D) all of the above 
E) none of the above 
A) light waves. 
B) sound waves. 
C) water waves. 
D) all of the above 
E) none of the above

Exam 29: Light Waves

Light from two closely-spaced stars cannot produce a steady interference pattern due to

A pair of crossed Polaroids will transmit light

Monochromatic light is light of a single

A thin film appears yellow when illuminated with white light. The color being cancelled by destructive interference is

Thomas Young's two-source interference patterns demonstrate the

In the double-slit experiment, fringes are more widely spaced when illumination is with monochromatic

Light travels through non-cubic transparent crystals

A razor blade nicely shows diffraction fringes when illuminated with

The glare seen from water is largely

Radio waves that diffract more around small buildings are

Light will pass through a pair of Polaroids when their axes are

A dolphin perceives greater detail by emitting sounds of

Colors seen when gasoline forms a thin film on water illustrate

Newton's rings will be closer together if illuminated with

A painting looks less flat when viewed with

When waves from a pair of closely-spaced slits arrive in phase

Parallax is evident when you view objects

A thin film appears magenta when illuminated with white light. The color being cancelled by destructive interference is

The function of polarizing filters in viewing 3-D slides or movies is to provide each eye

Interference is a property of

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