Two adjoining plane mirrors are separated by an angle of 100°. light is incident on the first mirror at an angle of 70°. the light reflects toward the second mirror and is then reflected from it. at what angle is the light reflected from the second mirror?

The angle is the light reflected from the second mirror is 30°

Explanation:

Given that,

Angle between mirrors = 100°

Angle of incident = 70°

We know that,

The incident angle is equal to the reflected angle.

We need to calculate the angle BCA

According to figure,

In ,

Put the value into the formula

We need to calculate the angle is the light reflected from the second mirror

Using relation of incident and reflection

We know that, i = r

So, i=r=30°

Hence, The angle is the light reflected from the second mirror is 30°

i think the answer is a and b

i wish you luck