A ray of light is incident at polarising angle such that its... | Physics | SolveeIt

Question

A ray of light is incident at polarising angle such that its deviation is $24^{\circ}$ , then angle of incidence is

$24^{\circ}$

$57^{\circ}$

$66^{\circ}$

$90^{\circ}$

Answer

$57^{\circ}$

Explanation

Solution

Here, $i_{p}=r+\delta$

$i_{p}=r+24$ ...(i)
Moreover, $i_{p}+r=90^{\circ}$ ...(ii)
From Eqs. (i) and (ii), we get
$i_{p}+\left(i_{p}-24\right) =90^{\circ}$
$\Rightarrow i_{p} =57^{\circ}$

Physics Question on Wave optics

Solution