Question

A ray of light falls on a plane mirror in such a way that the angle between the incident ray and the reflected ray is 70°. Find the angle of incidence and reflection​

Answer 1

Answer:

angle of incidence = 35⁰

angle of reflection = 35⁰

Explanation:

the normal ray divides it into two equal angles

i e, 70⁰/2 =. 35⁰

Answer 2

Answer:

The angle of incidence = angle of reflection = 35°

Explanation:

From the laws of reflection, we know that the angle of incidence and the angle of reflection are always equal. The angle of incidence is the angle formed between the incident ray and the normal. The angle of reflection is the angle formed between the reflected ray and the normal.

Here we have the angle between the incident ray and the reflected ray as 70°. Since the incident and reflected rays are equal we can find that each angle will be half of 70°.

∴ Angle of incidence = angle of reflection = 70/2 = 35°.