Question 1

A container of flint glass (n = 1.61) holds a small quantity of benzene (n = 1.501) .What is the critical angle for internal reflection of a ray in the glass when it is incident on the glass-to-liquid surface?

Accepted Answer

A)  86.1°
B)  68.8°
C)  41.8°
D)  38.4°
E)  83.9ºF) B) and D)
G) A) and D)

Question 2

Light not only has wavelike properties,but also has particle-like properties.What are these "particles" of light called?

Accepted Answer

A)  quarks
B)  wavicles
C)  photons
D)  etheronsE) A) and B)
F) None of the above

Question 3

A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.49) .If the velocity of the beam before it enters the plastic is 3.00 × 108 m/s,what is its velocity inside the block?

Accepted Answer

A)  3.00E+8 m/s
B)  1.35E+8 m/s
C)  2.01E+8 m/s
D)  2.46E+8 m/s
E)  1.53E+8 m/sF) B) and C)
G) None of the above

Question 4

A ray of light is incident on the mid-point of a glass prism surface at an angle of 24.0° with the normal.For the glass,n = 1.55,and the prism apex angle is 44.3°.What is the angle of refraction as the ray enters the air on the far side of the prism?

Accepted Answer

A)  0.853°
B)  48.9°
C)  18.3°
D)  11.7°
E)  29.1°F) A) and B)
G) D) and E)

Question 5

A ray of light travels from a glass-to-liquid interface at an angle of 23°.Indices of refraction for the glass and liquid are,respectively,1.58 and 1.80.What is the angle of refraction for the ray moving through the liquid?

Accepted Answer

A)  26.4°
B)  20.1°
C)  17.5°
D)  20.2°
E)  26.2°F) D) and E)
G) B) and C)

Question 6

A slab of material 1 rests on the surface of a slab of material 2.A light ray in material 1 has an angle of incidence of 30° on the interface between the materials,while the ray in material 2 has an angle of refraction of 45°.What is the critical angle of incidence for total internal reflection for a ray of light going from material 2 to material 1?

Accepted Answer

A)  30°
B)  45°
C)  In this case there is no critical angle.
D)  At least one of the indices of refraction or its equivalent is needed to solve this problem.E) B) and C)
F) B) and D)

Question 7

Huygens's wave theory requires which of the following with regard to the relative speeds of light in glass and in air?

Accepted Answer

A)  Speed in air is greater than in glass.
B)  Speed in air is less than in glass.
C)  Speed in air equals that in glass.
D)  Speed in glass equals square root of that in air.E) A) and B)
F) B) and D)

Question 8

Fused quartz has an index of refraction of 1.50 for light from a 678-nm source.What is the speed of light for this wavelength within the quartz? (c = 3.00 × 108 m/s)

Accepted Answer

A)  1.50E+8 m/s
B)  2.00E+8 m/s
C)  2.45E+8 m/s
D)  1.33E+8 m/s
E)  1.50E+8 m/s.F) A) and B)
G) D) and E)

Question 9

A ray of light is incident on the mid-point of a glass prism surface at an angle of 23.4° with the normal.For the glass,n = 1.60,and the prism apex angle is 51.8°.What is the angle of incidence at the glass-to-air surface on the side opposite where the ray exits the prism?

Accepted Answer

A)  39.5°
B)  14.4°
C)  37.4°
D)  28.4°
E)  42.7°F) B) and C)
G) A) and B)

Question 10

Fiber optics has to do with:

Accepted Answer

A)  the color of fabrics.
B)  light having fiber characteristics as well as wave and particle characteristics.
C)  string theory.
D)  none of the above.E) B) and C)
F) A) and D)

Question 11

If the wavelength of a monochromatic source is 316 nm in vacuum,what is the wavelength from the same source when it passes through a liquid where the speed of light is 1.86 × 108 m/s? (c = 3.00 × 108 m/s)

Accepted Answer

A)  590 nm
B)  510 nm
C)  566 nm
D)  196 nm
E)  121 nmF) A) and D)
G) A) and C)

Question 12

When light from air hits a smooth piece of glass with the ray perpendicular to the glass surface,the part of the light passing into the glass:

Accepted Answer

A)  will not change its speed.
B)  will not change its frequency.
C)  will not change its wavelength.
D)  will not change its intensity.E) None of the above
F) B) and C)

Question 13

A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 37.2°.Part of the beam is transmitted and part is reflected.What is the angle between the reflected and transmitted rays?

Accepted Answer

A)  23.8°
B)  103°
C)  119°
D)  61.0°
E)  127°F) A) and D)
G) A) and C)

Question 14

Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n1,the middle has n2 and the bottom one has n3.If n1 > n2 > n3,and if a ray of light strikes the top layer at an angle of incidence θi = 30º,in which layer is the angle of refraction the greatest?

Accepted Answer

A)  the top layer
B)  the middle layer
C)  the bottom layer
D)  Once the ray enters the touching layers,the angle of refraction remains constant.E) All of the above
F) C) and D)

Question 15

A ray of white light,incident upon a glass prism,is dispersed into its various color components.Which one of the following colors experiences the greatest angle of deviation?

Accepted Answer

A)  orange
B)  violet
C)  red
D)  greenE) A) and B)
F) None of the above

Question 16

A certain kind of glass has nblue = 1.650 for blue light and nred = 1.610 for red light.If a beam of white light (containing all colors) is incident at an angle of 60.6°,what is the angle between the red and blue light inside the glass?

Accepted Answer

A)  0.91°
B)  0.89°
C)  60°
D)  0.78°
E)  89°F) D) and E)
G) B) and E)

Question 17

Newton's theory of light treated light as ________ while Young demonstrated that light behaved as ________ with ________ behavior.

Accepted Answer

A)  particles,waves,refractive
B)  particles,waves,interference
C)  waves,particles,interference
D)  waves,particles,refractiveE) C) and D)
F) A) and D)

Question 18

A light ray in air is incident on an air-to-glass boundary at an angle of 33.0° and is refracted in the glass at an angle of 18.5° with the normal.Find the index of refraction of the glass.

Accepted Answer

A)  1.78
B)  2.89
C)  2.95
D)  1.72
E)  1.58F) B) and C)
G) A) and B)

Question 19

When viewing your image in a hand-held mirror,if you move the mirror away at a speed v,the image appears to:

Accepted Answer

A)  also move away at v.
B)  move away at 2v.
C)  move away at v/2.
D)  not move.E) None of the above
F) A) and C)

Question 20

A rainbow is a result of:

Accepted Answer

A)  different color droplets of water.
B)  dispersion.
C)  interference.
D)  the Huygens Effect.E) A) and B)
F) C) and D)

Exam 22: Reflection and Refraction of Light

A ray of light travels from a glass-to-liquid interface at an angle of 23°.Indices of refraction for the glass and liquid are,respectively,1.58 and 1.80.What is the angle of refraction for the ray moving through the liquid?

Correct Answer
verified

Fused quartz has an index of refraction of 1.50 for light from a 678-nm source.What is the speed of light for this wavelength within the quartz? (c = 3.00 × 10⁸ m/s)

Correct Answer
verified

Correct Answer
verified

When viewing your image in a hand-held mirror,if you move the mirror away at a speed v,the image appears to:

Correct Answer
verified

A ray of white light,incident upon a glass prism,is dispersed into its various color components.Which one of the following colors experiences the greatest angle of deviation?

Correct Answer
verified

A light ray in air is incident on an air-to-glass boundary at an angle of 33.0° and is refracted in the glass at an angle of 18.5° with the normal.Find the index of refraction of the glass.

Correct Answer
verified

If the wavelength of a monochromatic source is 316 nm in vacuum,what is the wavelength from the same source when it passes through a liquid where the speed of light is 1.86 × 10⁸ m/s? (c = 3.00 × 10⁸ m/s)

Correct Answer
verified

When light from air hits a smooth piece of glass with the ray perpendicular to the glass surface,the part of the light passing into the glass:

Correct Answer
verified

Fiber optics has to do with:

Correct Answer
verified

A ray of light is incident on the mid-point of a glass prism surface at an angle of 23.4° with the normal.For the glass,n = 1.60,and the prism apex angle is 51.8°.What is the angle of incidence at the glass-to-air surface on the side opposite where the ray exits the prism?

Correct Answer
verified

A rainbow is a result of:

Correct Answer
verified

A ray of light is incident on the mid-point of a glass prism surface at an angle of 24.0° with the normal.For the glass,n = 1.55,and the prism apex angle is 44.3°.What is the angle of refraction as the ray enters the air on the far side of the prism?

Correct Answer
verified

Correct Answer
verified

A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.49) .If the velocity of the beam before it enters the plastic is 3.00 × 10⁸ m/s,what is its velocity inside the block?

Correct Answer
verified

Huygens's wave theory requires which of the following with regard to the relative speeds of light in glass and in air?

Correct Answer
verified

Light not only has wavelike properties,but also has particle-like properties.What are these "particles" of light called?

Correct Answer
verified

A certain kind of glass has n_blue = 1.650 for blue light and n_red = 1.610 for red light.If a beam of white light (containing all colors) is incident at an angle of 60.6°,what is the angle between the red and blue light inside the glass?

Correct Answer
verified

A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 37.2°.Part of the beam is transmitted and part is reflected.What is the angle between the reflected and transmitted rays?

Correct Answer
verified

A container of flint glass (n = 1.61) holds a small quantity of benzene (n = 1.501) .What is the critical angle for internal reflection of a ray in the glass when it is incident on the glass-to-liquid surface?

Correct Answer
verified

Newton's theory of light treated light as while Young demonstrated that light behaved as with behavior.

Correct Answer
verified

Exam 22: Reflection and Refraction of Light

A ray of light travels from a glass-to-liquid interface at an angle of 23°.Indices of refraction for the glass and liquid are,respectively,1.58 and 1.80.What is the angle of refraction for the ray moving through the liquid?

Correct AnswerverifiedShow Answer

Fused quartz has an index of refraction of 1.50 for light from a 678-nm source.What is the speed of light for this wavelength within the quartz? (c = 3.00 × 108 m/s)

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

When viewing your image in a hand-held mirror,if you move the mirror away at a speed v,the image appears to:

Correct AnswerverifiedShow Answer

A ray of white light,incident upon a glass prism,is dispersed into its various color components.Which one of the following colors experiences the greatest angle of deviation?

Correct AnswerverifiedShow Answer

A light ray in air is incident on an air-to-glass boundary at an angle of 33.0° and is refracted in the glass at an angle of 18.5° with the normal.Find the index of refraction of the glass.

Correct AnswerverifiedShow Answer

If the wavelength of a monochromatic source is 316 nm in vacuum,what is the wavelength from the same source when it passes through a liquid where the speed of light is 1.86 × 108 m/s? (c = 3.00 × 108 m/s)

Correct AnswerverifiedShow Answer

When light from air hits a smooth piece of glass with the ray perpendicular to the glass surface,the part of the light passing into the glass:

Correct AnswerverifiedShow Answer

Fiber optics has to do with:

Correct AnswerverifiedShow Answer

A ray of light is incident on the mid-point of a glass prism surface at an angle of 23.4° with the normal.For the glass,n = 1.60,and the prism apex angle is 51.8°.What is the angle of incidence at the glass-to-air surface on the side opposite where the ray exits the prism?

Correct AnswerverifiedShow Answer

A rainbow is a result of:

Correct AnswerverifiedShow Answer

A ray of light is incident on the mid-point of a glass prism surface at an angle of 24.0° with the normal.For the glass,n = 1.55,and the prism apex angle is 44.3°.What is the angle of refraction as the ray enters the air on the far side of the prism?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.49) .If the velocity of the beam before it enters the plastic is 3.00 × 108 m/s,what is its velocity inside the block?

Correct AnswerverifiedShow Answer

Huygens's wave theory requires which of the following with regard to the relative speeds of light in glass and in air?

Correct AnswerverifiedShow Answer

Light not only has wavelike properties,but also has particle-like properties.What are these "particles" of light called?

Correct AnswerverifiedShow Answer

A certain kind of glass has nblue = 1.650 for blue light and nred = 1.610 for red light.If a beam of white light (containing all colors) is incident at an angle of 60.6°,what is the angle between the red and blue light inside the glass?

Correct AnswerverifiedShow Answer

A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 37.2°.Part of the beam is transmitted and part is reflected.What is the angle between the reflected and transmitted rays?

Correct AnswerverifiedShow Answer

A container of flint glass (n = 1.61) holds a small quantity of benzene (n = 1.501) .What is the critical angle for internal reflection of a ray in the glass when it is incident on the glass-to-liquid surface?

Correct AnswerverifiedShow Answer

Newton's theory of light treated light as ________ while Young demonstrated that light behaved as ________ with ________ behavior.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Fused quartz has an index of refraction of 1.50 for light from a 678-nm source.What is the speed of light for this wavelength within the quartz? (c = 3.00 × 10⁸ m/s)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

If the wavelength of a monochromatic source is 316 nm in vacuum,what is the wavelength from the same source when it passes through a liquid where the speed of light is 1.86 × 10⁸ m/s? (c = 3.00 × 10⁸ m/s)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.49) .If the velocity of the beam before it enters the plastic is 3.00 × 10⁸ m/s,what is its velocity inside the block?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A certain kind of glass has n_blue = 1.650 for blue light and n_red = 1.610 for red light.If a beam of white light (containing all colors) is incident at an angle of 60.6°,what is the angle between the red and blue light inside the glass?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Newton's theory of light treated light as while Young demonstrated that light behaved as with behavior.

Correct Answer
verified