Question

an incident ray strikes a plane mirror at an angle of 20 degrees with the mirror the angle between the incident ray and reflected ray is ?

Answer 1

Explanation :

It is given that an incident ray strikes a plane mirror at an angle of 20 degrees with the mirror.

We know that the angle between the normal and the surface of the mirror is 90.

So, the angle between the incident ray and the normal will be 70. Similarly, the angle between the reflected rays and the normal will also equal to 70.

So, the total angle between the incident ray and the reflected ray is equal to $140^0$ (as shown in attached figure) .

Hence, this is the required solution.

Answer 2

Answer:

20

Explanation:

because , i think that if light hits the mirror at 20 degree so the reflection is same, so it 20