Question

A ray of light is incident at an angle of $$ 45^o $$ at the interface of medium (1) and medium (2) as shown in the above diagram Redraw in the answer book and coplete it.If the above digarm.Redraw in the answer book and complete it.If the angle of friction is $$ 30^o $$, find the refractive index of medium (2) with respect to medium (1)
$$ (Given that sin 45^o = \frac { 1 }{ \sqrt { 2 } } sin and sin 30^o = \frac {1}{2} ) $$
If the second medium is water in place of medium (2) will the angle if friction increases or decreases?why?(Refractive index of water = 4/3)