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SAT® Subject Test in Physics

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Moderate

Angle of Refraction in Water

SATPHY-4LYMSX

Light moves from air into water. The light makes an angle of $47 ^{\circ}$ with the normal in the air. What angle will it make with the normal in the water?

The index of refraction for air is 1.00.

The index of refraction for water is 1.33.

A

$47^{\circ}$

B

$77^{\circ}$

C

$43^{\circ}$

D

$25^{\circ}$

E

$33^{\circ}$