Exam 22: Reflection and Refraction of Light

A monochromatic beam of light in air has a wavelength of 427 nm in air.It passes through glass (n = 1.52)and then through carbon disulfide (n = 1.63).What is its wavelength in the carbon disulfide?

If the speed of light through an unknown liquid is measured at 1.78 × 10⁸ m/s,what is the index of refraction of this liquid? (c = 3.00 × 10⁸ m/s)

Diamond has an index of refraction of 2.419.What is the critical angle for internal reflection inside a diamond that is in air?

An oil film floats on a water surface.The indices of refraction for water and oil,respectively,are 1.333 and 1.466.If a ray of light is incident on the air-to-oil surface at an angle of 44.3° with the normal,what is the angle of the refracted ray in the water?

What is the energy of a photon of frequency 3.30 × 10¹⁴ Hz? (h = 6.626 × 10−³⁴ J⋅s)

A light ray in air enters and passes through a block of glass.What can be stated with regard to its speed after it emerges from the block?

A ray of light travels across a liquid-to-glass interface.If the indices of refraction for the liquid and glass are,respectively,1.63 and 1.43,what is the critical angle at this interface?

A ray of light is incident on a liquid-to-glass interface at an angle of 34.1°.Indices of refraction for the liquid and glass are,respectively,1.93 and 1.64.What is the angle of refraction for the ray moving through the glass?

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,at what angle of incidence will a ray of light traverse the three layers in a single straight line?

An oil film floats on a water surface.The indices of refraction for water and oil,respectively,are 1.333 and 1.466.If a ray of light is incident on the air-to-oil surface at an angle of 41.9° with the normal,what is the incident angle at the oil-to-water surface?

Which of the following describes what will happen to a light ray incident on an air-to-glass boundary?

Water has an index of refraction of 1.333.What is the speed of light through it? (c = 3.00 × 10⁸ m/s)

Which of the following describes what will happen to a light ray incident on a glass-to-air boundary at greater than the critical angle?

A slab of plastic rests on a slab of glass.A ray of light in the plastic crosses the interface between the plastic and the glass with the result that the ray bends toward the normal.What must be true about the indices of refraction in these materials?

A light ray passes from air through a thin plastic slab (n = 1.77)with parallel sides.If the ray in air makes an angle of 49° with the normal after leaving the slab,what is the angle of incidence for the ray in air as it impinges upon the other side of the slab?

When light from air hits a smooth piece of glass (n = 1.5)with the ray perpendicular to the glass surface,which of the following will occur?

One phenomenon that demonstrates the wave nature of light is:

A fish is 1.2 m beneath the surface of a still pond of water.At what maximum angle can the fish look toward the surface (measured with respect to the normal to the surface)in order to see a fisherman sitting on a distant bank? (for water,n = 1.333)

Which of the following describes what will happen to a light ray incident on an air-to-glass boundary at less than the critical angle?

​Which of the following statements is false?