Question 1

When a light beam emerges from water into air,the average light speed

Accepted Answer

A) increases. 
B) decreases. 
C) remains the same. 
A) increases. 
B) decreases. 
C) remains the same.

Question 2

A mirage occurs for road surfaces that are

Accepted Answer

A) warm. 
B) cold. 
C) wet. 
D) hard. 
E) snowy. 
A) warm. 
B) cold. 
C) wet. 
D) hard. 
E) snowy.

Question 3

The refraction of light in a diamond is greater for

Accepted Answer

A) long-wavelength light. 
B) short-wavelength light. 
C) Both refract the same. 
A) long-wavelength light. 
B) short-wavelength light. 
C) Both refract the same.

Question 4

A mirage is a result of atmospheric

Accepted Answer

A) reflection. 
B) refraction. 
C) scattering. 
D) dispersion. 
E) aberrations. 
A) reflection. 
B) refraction. 
C) scattering. 
D) dispersion. 
E) aberrations.

Question 5

Refraction results from differences in light's

Accepted Answer

A) frequency. 
B) incident angles. 
C) speed. 
D) all of these 
E) none of these 
A) frequency. 
B) incident angles. 
C) speed. 
D) all of these 
E) none of these

Question 6

If you walk towards a mirror at a certain speed,the relative speed between you and your image is

Accepted Answer

A) half your speed. 
B) your speed. 
C) twice your speed. 
D) none of these 
A) half your speed. 
B) your speed. 
C) twice your speed. 
D) none of these

Question 7

The incident light ray,the reflected light ray,and the normal between them

Accepted Answer

A) lie in the same plane. 
B) may or may not lie in the same plane. 
C) lie in planes that are perpendicular to one another. 
A) lie in the same plane. 
B) may or may not lie in the same plane. 
C) lie in planes that are perpendicular to one another.

Question 8

A surface that is considered rough for infrared waves may be polished for

Accepted Answer

A) radio waves. 
B) light waves. 
C) both of these 
D) none of these 
A) radio waves. 
B) light waves. 
C) both of these 
D) none of these

Question 9

As monochromatic light passes from air to glass and back to air,changes are observed in its

Accepted Answer

A) wavelength,frequency,and speed. 
B) wavelength and frequency. 
C) wavelength and speed. 
D) frequency and speed. 
E) None of the above choices are correct. 
A) wavelength,frequency,and speed. 
B) wavelength and frequency. 
C) wavelength and speed. 
D) frequency and speed. 
E) None of the above choices are correct.

Question 10

When light is refracted,there is a change in its

Accepted Answer

A) frequency. 
B) wavelength. 
C) both of these 
D) neither of these 
A) frequency. 
B) wavelength. 
C) both of these 
D) neither of these

Question 11

If a fish looks upward at 45 degrees with respect to the water's surface,it will see

Accepted Answer

A) the bottom of the pond. 
B) another fish in the pond. 
C) the sky and possibly some hills. 
D) only the water's surface. 
E) none of these 
A) the bottom of the pond. 
B) another fish in the pond. 
C) the sky and possibly some hills. 
D) only the water's surface. 
E) none of these

Question 12

The moon's redness during a lunar eclipse results from

Accepted Answer

A) only lower frequencies being reflected from the moon. 
B) infrared radiation that is normally blocked. 
C) an optical illusion. 
D) refraction by the Earth's atmosphere of Earth's sunrises and sunsets. 
E) none of these 
A) only lower frequencies being reflected from the moon. 
B) infrared radiation that is normally blocked. 
C) an optical illusion. 
D) refraction by the Earth's atmosphere of Earth's sunrises and sunsets. 
E) none of these

Question 13

The type of lens that spreads parallel light is a

Accepted Answer

A) converging lens. 
B) diverging lens. 
C) combination converging-diverging lens. 
A) converging lens. 
B) diverging lens. 
C) combination converging-diverging lens.

Question 14

A mirage occurs for surfaces that are

Accepted Answer

A) horizontal. 
B) vertical. 
C) both of these 
A) horizontal. 
B) vertical. 
C) both of these

Question 15

Chromatic aberration is absent in

Accepted Answer

A) converging lenses 
B) diverging lenses. 
C) front surface plane mirrors. 
A) converging lenses 
B) diverging lenses. 
C) front surface plane mirrors.

Question 16

When a light ray passes at a non-90 degree angle from water into air,it

Accepted Answer

A) bends toward the normal. 
B) bends away from the normal. 
C) travels much slower. 
A) bends toward the normal. 
B) bends away from the normal. 
C) travels much slower.

Question 17

Different colors are dispersed by a prism because different colors in the prism have different

Accepted Answer

A) frequencies. 
B) speeds. 
C) directions. 
D) energies. 
E) none of these 
A) frequencies. 
B) speeds. 
C) directions. 
D) energies. 
E) none of these

Question 18

Refraction causes the bottom of a swimming pool to appear

Accepted Answer

A) farther down than it actually is. 
B) closer to the surface than it actually is. 
C) neither. 
A) farther down than it actually is. 
B) closer to the surface than it actually is. 
C) neither.

Question 19

A person standing waist-deep in a swimming pool appears to have short legs because of light

Accepted Answer

A) reflection. 
B) absorption. 
C) interference. 
D) diffraction. 
E) refraction. 
A) reflection. 
B) absorption. 
C) interference. 
D) diffraction. 
E) refraction.

Question 20

Stars twinkle when seen from the Earth.When seen from the moon,stars

Accepted Answer

A) twinkle more. 
B) twinkle less. 
C) don't twinkle. 
A) twinkle more. 
B) twinkle less. 
C) don't twinkle.

Exam 28: Reflection and Refraction

When a light beam emerges from water into air,the average light speed

A mirage occurs for road surfaces that are

The refraction of light in a diamond is greater for

A mirage is a result of atmospheric

Refraction results from differences in light's

If you walk towards a mirror at a certain speed,the relative speed between you and your image is

The incident light ray,the reflected light ray,and the normal between them

A surface that is considered rough for infrared waves may be polished for

As monochromatic light passes from air to glass and back to air,changes are observed in its

When light is refracted,there is a change in its

If a fish looks upward at 45 degrees with respect to the water's surface,it will see

The moon's redness during a lunar eclipse results from

The type of lens that spreads parallel light is a

A mirage occurs for surfaces that are

Chromatic aberration is absent in

When a light ray passes at a non-90 degree angle from water into air,it

Different colors are dispersed by a prism because different colors in the prism have different

Refraction causes the bottom of a swimming pool to appear

A person standing waist-deep in a swimming pool appears to have short legs because of light

Stars twinkle when seen from the Earth.When seen from the moon,stars

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