A ray of unpolarised light is incident on a glass plate of refractive index 1.54 at polarising angle, then angle of refraction is
Answer & explanation
Correct answer: option 1
$μ = tan_{ip}$ or $tan_{ip} =1.54$
i.e., $ip = tan^{–1} 1.54 = 57°$,
But $r + i_p = 90°\, ∴r = 90° - i_p$
$= 90° - 57 = 33°$