(a) Light reflected from the surface of a vat of water is totally polarized when

Question

(a) Light reflected from the surface of a vat of water is totally polarized when the incident light is at what angle with respect to the horizontal?
Answer in °

(b) In what direction is the reflected light polarized?

A. parallel to the surface and to the plane of incidence
B. perpendicular to the plane of incidence    
C. perpendicular to the surface

(c) Is any light incident at this angle transmitted into the liquid?

Yes or No    

If so, at what angle below the horizontal does the transmitted light travel? (If not, simply enter "NA".)

Answer in degrees

Explanation / Answer

a) from snells law n1sini = n2 sinthetar

here n1= 1

sinr = sini/n2

r = sin^-1(sini/n2)

b) perpendicular to the plane of incidence

c) that is the brewster'sangle theta = tan^-1(n2/n1)

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