A laser beam in air strikes a horizontal glass slab with an incident angle of…

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

Problem

A laser beam in air strikes a horizontal glass slab with an incident angle of

0.65\,\text{rad}

measured from the normal. What is the angle between the reflected beam and the slab’s surface, expressed in degrees? (Use

\pi = 3.14

.) (a)

75^{\circ}

(b)

37^{\circ}

(c)

53^{\circ}

(d)

89^{\circ}