Question

A ray of light strikes a plane mirror XY at an angle of incidence of 75 degree, I is reflected from the same plane mirror as YZ. What is angle of reflection for the mirror YZ​

Answer 1

Answer:

the angle should be 90°+75°= 165°

Explanation:

bcoz ,  

   angle XYZ= (angle XYand the normal)  + (angle ZY and the normal)

                                  (  = 90° )                                    (=  75°)

   angle ZYand the normal = 75 °

• ANS = 165°