Question

Light falls on a plane reflecting surface. For what angle of incidence, is the reflected ray normal to

the incident ray?​

Answer 1

Answer:

Explanation:

When a ray of light falls normally (or perpendicular) on the surface of a plane mirror, it means that angle of incidence is 0o. According to second law of reflection, angle of incidence is equal to the angle of reflection. ... Thus, the light ray will be reflected back along the same path

Answer 2

Answer:

IT IS DEPENDENT ON THE ANGLE AT WHICH THE RAY HITS THE PLANE SURFACE

Explanation:

THIS IS BECAUSE THE NORMAL CAN BE FORMED ANYWHERE ON THE PLANE SURFACE WHICH IS ALWAYS PERPENDICULAR TO THE SURFACE

ANGLE OF INCIDENCE IS EQUAL TO ANGLE OF REFLECTION