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SAT® Subject Test in Physics

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Moderate

Light from Aquarium

SATPHY-GMH0O1

A light ray travels at some angle (not head on) from water in a rectangular aquarium, through the glass side, and out into the air. The indices of refraction for water, glass, and air are 1.33, about 1.6, and 1.0, respectively.

Rank the materials according to the angles made by the light ray with the normal in each, greatest first.

A

air, water, glass

B

air, glass, water

C

water, air, glass

D

water, glass, air

E

glass, water, air