A ray of light travelling in water is incident on a glass plate immersed in it. When the angle of incidence is 51°, the reflected ray is totally polarized. Find out the refractive index of glass.
[The refractive index of water is 1. 3 and tan 51° = 1.235]
Text Solution
Verified by ExpertsThe correct answer is:
A
1.605
= tan i ; for total plane polarization.
{r=90-i}
=1.605
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