An Innovative Physics Professor Conducts Laboratory Exercises in the College $^{\circ}$

Multiple Choice

An innovative physics professor conducts laboratory exercises in the college swimming pool.Suppose that one exercise was the measurement of the degree of polarization by bouncing laser light off a surface of glass.If the glass used has an index of refraction of 1.52,at what angle of incidence will the reflected beam be perfectly polarized? It will help to recall that the index of refraction of water is 1.33.

A) 61 $^{\circ}$
B) 49 $^{\circ}$
C) 41 $^{\circ}$
D) 39 $^{\circ}$