Question

When unpolarised light beam is incident from air onto glass (n = 1.5) at the polarising angle.
(a) Reflected beam is polarised completely
(b) Reflected and refracted beams are partially polarised
(c) Refracted beam is plane polarised
(d) Whole beam of light is refracted

Answer 1

Answer:

The light reflected is perfectly polarised. The tangeny of polarizing light is equal to refractive index. Hence, when unpolarised light beam is incident from air onto glass (n = 1.5) at the polarising angle the reflected beam is polarised 100 percent.

Answer 2

( b ) Redirected and reflected beams are partiality polarised

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