Statement I: A light ray is incident on a glass slab. Some portion of it is reflected and some is refracted. Refracted and reflected rays are always perpendicular to each other.
Statement II: Angle of incidence is equal to angle of reflection.

Options

A. Statement is True, Statement II is True, Statement II is correct explanation for Statement I
B. Statement I is True, Statement II is True, Statement II is NOT a correct explanation for Statement I.
C. Statement I is True, Statement II is False.
D. Statement I is False, Statement II is True.

Answer

d.

Explanation

`1xxsini=musinr=musin(90-i)`
`sini=mucosi`
`rArr tani=mu`
So, reflected and refracted rays are perpendicular if `tani=mu`.