Question 1

The polarization axes of glasses for 3-D viewing are

Accepted Answer

A)  vertical.
B)  horizontal.
C)  at right angles to each other.D) None of the above
E) All of the above

Question 2

Light will not pass through a pair of Polaroids when their axes are

Accepted Answer

A)  parallel.
B)  perpendicular.
C)  45 degrees to each other.
D)  two of these
E)  all of theseF) B) and C)
G) C) and E)

Question 3

Diffraction is more pronounced through relatively

Accepted Answer

A)  small openings.
B)  large openings.
C)  same for eachD) All of the above
E) A) and C)

Question 4

When long-wavelength light is seen in the interference colors of a soap bubble,the wavelength being cancelled is relatively

Accepted Answer

A)  long.
B)  short.
C)  neitherD) A) and B)
E) None of the above B

Question 5

Consider the interference colors seen in a film of gasoline on a wet street.The function of the water is to provide a

Accepted Answer

A)  means of spreading the gasoline into a thin film.
B)  means of slowing the rapid evaporation of gasoline.
C)  chemical bond with the gasoline.
D)  second reflecting surface.
E)  all of theseF) B) and E)
G) C) and E)

Question 6

Because of absorption,a Polaroid will actually transmit 40% of incident unpolarized light.Two such Polaroids with their axes aligned will transmit

Accepted Answer

A)  0%.
B)  40%.
C)  100%.
D)  between 0% and 40%.
E)  between 40% and 100%.F) A) and B)
G) B) and D)

Question 7

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-hand view.
D)  a stereoscopic view.
E)  with light polarized at right angles to each other.F) D) and E)
G) A) and B)

Question 8

Diffraction is a result of

Accepted Answer

A)  refraction.
B)  reflection.
C)  interference.
D)  polarization.
E)  dispersion.F) B) and E)
G) None of the above

Question 9

The polarization axes of ordinary sunglasses are

Accepted Answer

A)  vertical.
B)  horizontal.
C)  at right angles to each other.D) All of the above
E) B) and C) A

Question 10

A thin film appears blue 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 theseF) B) and C)
G) None of the above

Question 11

An ideal Polaroid will transmit 50% of unpolarized light incident on it.How much light is transmitted by two ideal Polaroids that are oriented with their axes parallel to each other?

Accepted Answer

A)  0%
B)  50%
C)  100%
D)  between 0% and 50%
E)  between 50% and 100%F) C) and D)
G) B) and C)

Question 12

When you view a soap film by white light coming from almost behind your head,you see a certain color.A friend on the other side of the film likely sees

Accepted Answer

A)  the same color.
B)  a different color.C) A) and B)
D) undefined

Question 13

Iridescent colors seen in the pearly luster of an abalone shell are due to

Accepted Answer

A)  refraction.
B)  diffraction.
C)  dispersion.
D)  polarization.
E)  interference.F) A) and E)
G) None of the above

Question 14

Holograms employ the principle of

Accepted Answer

A)  diffraction.
B)  interference.
C)  both of these
D)  neither of theseE) A) and D)
F) A) and B)

Question 15

Polarization is a property of

Accepted Answer

A)  transverse waves.
B)  longitudinal waves.
C)  both
D)  neitherE) A) and B)
F) A) and C)

Question 16

For radio reception,diffraction is

Accepted Answer

A)  helpful.
B)  a hindrance.
C)  not a factor.D) B) and C)
E) A) and C)

Question 17

A painting looks less flat when viewed with

Accepted Answer

A)  one eye.
B)  both eyes.
C)  Polaroid glasses.D) A) and C)
E) All of the above

Question 18

Interference is a property of

Accepted Answer

A)  light waves.
B)  sound waves.
C)  water waves.
D)  all of these
E)  none of theseF) B) and C)
G) A) and E)

Question 19

The spacings between double-slit interference fringes is increased if the slits are

Accepted Answer

A)  closer together.
B)  farther apart.
C)  narrower.
D)  wider.
E)  none of theseF) A) and B)
G) A) and E) A

Question 20

A property of non-cubic transparent crystals is that polarized light that travels through them

Accepted Answer

A)  breaks up into two perpendicular planes.
B)  is depolarized.
C)  is rotated.
D)  slows in speed.
E)  none of theseF) None of the above
G) B) and D)

Exam 29: Light Waves

The polarization axes of glasses for 3-D viewing are

Correct AnswerverifiedShow Answer

Light will not pass through a pair of Polaroids when their axes are

Correct AnswerverifiedShow Answer

Diffraction is more pronounced through relatively

Correct AnswerverifiedShow Answer

When long-wavelength light is seen in the interference colors of a soap bubble,the wavelength being cancelled is relatively

Correct AnswerverifiedB

Consider the interference colors seen in a film of gasoline on a wet street.The function of the water is to provide a

Correct AnswerverifiedShow Answer

Because of absorption,a Polaroid will actually transmit 40% of incident unpolarized light.Two such Polaroids with their axes aligned will transmit

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Diffraction is a result of

Correct AnswerverifiedShow Answer

The polarization axes of ordinary sunglasses are

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

An ideal Polaroid will transmit 50% of unpolarized light incident on it.How much light is transmitted by two ideal Polaroids that are oriented with their axes parallel to each other?

Correct AnswerverifiedShow Answer

When you view a soap film by white light coming from almost behind your head,you see a certain color.A friend on the other side of the film likely sees

Correct AnswerverifiedShow Answer

Iridescent colors seen in the pearly luster of an abalone shell are due to

Correct AnswerverifiedShow Answer

Holograms employ the principle of

Correct AnswerverifiedShow Answer

Polarization is a property of

Correct AnswerverifiedShow Answer

For radio reception,diffraction is

Correct AnswerverifiedShow Answer

A painting looks less flat when viewed with

Correct AnswerverifiedShow Answer

Interference is a property of

Correct AnswerverifiedShow Answer

The spacings between double-slit interference fringes is increased if the slits are

Correct AnswerverifiedA

A property of non-cubic transparent crystals is that polarized light that travels through them

Correct AnswerverifiedShow Answer

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A

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A

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