Question 1

Nearsightedness, or myopia, can be corrected with what type lens?

Accepted Answer

A) convex 
B) concave 
C) reflecting 
D) None of the above. 
A) convex 
B) concave 
C) reflecting 
D) None of the above. B

Question 2

Max Planck discovered that the blackbody radiation emitted by vibrating molecules

Accepted Answer

A) was continuous, like a train of waves. 
B) was constant for all objects. 
C) varied greatly from one experiment to the next. 
D) appeared to come in multiples of certain fixed amounts. 
A) was continuous, like a train of waves. 
B) was constant for all objects. 
C) varied greatly from one experiment to the next. 
D) appeared to come in multiples of certain fixed amounts. D

Question 3

A fluorescent light source emits light as a result of high temperature.

Accepted Answer

A) True 
 B)False  False

Question 4

The change in the direction of light as it passes through the boundary between two media is called refraction.

Accepted Answer

A) True 
 B)False

Question 5

When monochromatic light from two slits arrive at a point on a screen out of phase,

Accepted Answer

A) a dark region is produced. 
B) a bright region is produced. 
C) two different colors of light are observed. 
D) a region of polarized light is produced. 
A) a dark region is produced. 
B) a bright region is produced. 
C) two different colors of light are observed. 
D) a region of polarized light is produced.

Question 6

Interference is a property of light most easily explained by the particle model.

Accepted Answer

A) True 
 B)False

Question 7

The image formed by a plane mirror is

Accepted Answer

A) virtual. 
B) real. 
C) a result of diffuse reflection. 
D) smaller than the object. 
A) virtual. 
B) real. 
C) a result of diffuse reflection. 
D) smaller than the object.

Question 8

The slower light travels in a given media, the greater the index of refraction.

Accepted Answer

A) True 
 B)False

Question 9

The angle of incidence is equal to the angle of refraction.

Accepted Answer

A) True 
 B)False

Question 10

A prism separates the colors of sunlight into a spectrum because

Accepted Answer

A) red light is refracted the most, while violet light is refracted the least. 
B) longer wavelengths are bent more than shorter wavelengths. 
C) each wavelength of light has its own index of refraction. 
D) it polarizes the different wavelengths of light. 
A) red light is refracted the most, while violet light is refracted the least. 
B) longer wavelengths are bent more than shorter wavelengths. 
C) each wavelength of light has its own index of refraction. 
D) it polarizes the different wavelengths of light.

Question 11

The colors of the visible spectrum can be measured in units of

Accepted Answer

A) wavelength. 
B) frequency. 
C) energy. 
D) All of the above. 
A) wavelength. 
B) frequency. 
C) energy. 
D) All of the above.

Question 12

Total internal reflection

Accepted Answer

A) occurs when light strikes an interface at greater than the critical angle. 
B) accounts for the brilliance of cut diamonds. 
C) allows light to travel in a curved path inside an optic fiber. 
D) All of these are true. 
A) occurs when light strikes an interface at greater than the critical angle. 
B) accounts for the brilliance of cut diamonds. 
C) allows light to travel in a curved path inside an optic fiber. 
D) All of these are true.

Question 13

Longer wavelengths are affected more by a prism or water droplets than are the shorter wavelengths.

Accepted Answer

A) True 
 B)False

Question 14

When an electric stove element is hot enough, it gives off a dull red glow.When it cools to the point that it no longer glows, it will

Accepted Answer

A) emit shorter wavelength radiation. 
B) emit the same wavelength as before, but with less energy. 
C) emit longer wavelength radiation. 
D) stop emitting radiation altogether. 
A) emit shorter wavelength radiation. 
B) emit the same wavelength as before, but with less energy. 
C) emit longer wavelength radiation. 
D) stop emitting radiation altogether.

Question 15

-If 1 is the incident ray, what is the angle of reflection?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 16

A rainbow always appears

Accepted Answer

A) in the part of the sky in the same direction as the Sun. 
B) in the part of the sky opposite from the Sun. 
C) at an angle of 50 to 54 degrees from the Sun. 
D) only at sunset. 
A) in the part of the sky in the same direction as the Sun. 
B) in the part of the sky opposite from the Sun. 
C) at an angle of 50 to 54 degrees from the Sun. 
D) only at sunset.

Question 17

Polarized light vibrates

Accepted Answer

A) only in one plane. 
B) in two planes at right angles to one another. 
C) in all planes. 
D) not at all. 
A) only in one plane. 
B) in two planes at right angles to one another. 
C) in all planes. 
D) not at all.

Question 18

Phenomena such as diffraction and interference can be most easily explained in terms of the

Accepted Answer

A) ray model of light. 
B) particle model of light. 
C) wave model of light. 
D) photoelectric effect. 
A) ray model of light. 
B) particle model of light. 
C) wave model of light. 
D) photoelectric effect.

Question 19

-If angle A is 60º, what does angle C measure?

Accepted Answer

A) 60º 
B) 90º 
C) 30º 
D) roughly 25º 
A) 60º 
B) 90º 
C) 30º 
D) roughly 25º

Question 20

Polarizing sunglasses are useful because they are able to

Accepted Answer

A) use the critical angle to block light. 
B) reflect glare. 
C) absorb reflected light, which is polarized. 
D) refract reflected light, which causes glare. 
A) use the critical angle to block light. 
B) reflect glare. 
C) absorb reflected light, which is polarized. 
D) refract reflected light, which causes glare.

Exam 7: Light

Nearsightedness, or myopia, can be corrected with what type lens?

Max Planck discovered that the blackbody radiation emitted by vibrating molecules

A fluorescent light source emits light as a result of high temperature.

The change in the direction of light as it passes through the boundary between two media is called refraction.

When monochromatic light from two slits arrive at a point on a screen out of phase,

Interference is a property of light most easily explained by the particle model.

The image formed by a plane mirror is

The slower light travels in a given media, the greater the index of refraction.

The angle of incidence is equal to the angle of refraction.

A prism separates the colors of sunlight into a spectrum because

The colors of the visible spectrum can be measured in units of

Total internal reflection

Longer wavelengths are affected more by a prism or water droplets than are the shorter wavelengths.

When an electric stove element is hot enough, it gives off a dull red glow.When it cools to the point that it no longer glows, it will

-If 1 is the incident ray, what is the angle of reflection?

A rainbow always appears

Polarized light vibrates

Phenomena such as diffraction and interference can be most easily explained in terms of the

-If angle A is 60º, what does angle C measure?

Polarizing sunglasses are useful because they are able to

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