A Thin Flashlight Beam Traveling in Air Strikes a Glass

A thin flashlight beam traveling in air strikes a glass plate at an angle of 52° with the plane of the surface of the plate.If the index of refraction of the glass is 1.4,what angle will the beam make with the normal in the glass?

A) 34°
B) 64°
C) 26°
D) 56°
E) 38°

Correct Answer:

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