Question

A ray of ordinary light is travelling in air. It is incident on air glass pair at a polarising angle of 56°. Find the angle of refraction in glass.

Answer 1

∠i_p + ∠r = 90°

∠i_p = Angle of polarisation = 56°

∴ ∠r = 90° -  56° = 34°

∴ Angle of refraction is 34°.