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Exam 22: Reflection and Refraction of Light

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Question 41

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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.

A) 1.78
B) 2.89
C) 2.95
D) 1.72
E) 1.58

F) None of the above
G) A) and E)

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Question 42

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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)

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

F) A) and B)
G) B) and C)

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Question 43

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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?

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

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)

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?

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?

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?

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:

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?

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?

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 θ_i = 30º,in which layer is the angle of refraction the greatest?

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

A rainbow is a result of:

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

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?

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?

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

Fiber optics has to do with:

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?