A light ray in water ( ) strikes a horizontal water–air interface at an incident…

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Geometric Optics · Geometric Optics

Problem

A light ray in water (

n=1.33

) strikes a horizontal water–air interface at an incident angle of

25^{\circ}

measured from the normal in the water. What is the angle of the refracted ray in air, measured from the normal? (a)

18^{\circ}

(b)

55^{\circ}

(c)

34^{\circ}

(d)

25^{\circ}