Two plane mirrors are inclined at an angle of  70o 70 o . A ray of light incident on the horizontal mirror at an angle 𝜃θ as shown in the figure. The ray becomes parallel to the mirror 𝑀1M 1​ after reflecting from the mirror 𝑀2M 2​ . Calculate the value of 𝜃θ.

You position two plane mirrors at right angles to one another. A light ray strikes one mirror at an angle of 60o60 o to the normal. It then reflects toward the second mirror. What its angle of reflection of the second mirror?

A ray of light is incident towards a plane mirror at an angle of 63𝑜63 o with the mirror surface of the plane mirror. What will be the angle of reflection?

Two plane mirrors are connected such that they from a 45o angle between them. A light ray strikes one mirror at an angle of 30o to the normal and then reflects off the second mirror. Calculate the angle of reflection of the light ray off the second mirror.

Two plane mirrors meet at a right angle (see figure below). An incident ray strikes the bottom mirror at point B with an angle of incidence 𝜃i; this ray reflects from each mirror once and strikes the screen on top at point A. (The screen is parallel to the bottom mirror.) Given the dimensions in the figure, what is 𝜃i? (Note: The image is not drawn to scale. Assume x = 2.3 m and y = 1.9 m.)

Two mirrors P and Q are placed at right angles to each other as shown in the figure. A ray of light is incident on mirror P at an angle of 35𝑜35 o with the normal, the reflected ray then falls on mirror Q. The angle of reflection with the normal on mirror Q would be?