Question

The angle between the reflected ray and the mirror surface is 30°. The angle of incidence is​

Answer 1

Answer:

60 degree

Step-by-step explanation:

See the attached file:

We know that the angle made by the normal with the mirror is 90

So Angle between normal and mirror = angle between normal and reflected ray + angle between normal and reflected ray

90 = 30 + angle r

60 = angle r

Hence angle i = angle r

angle i = 60 degree