Q2 of 223 Page 173

A ray of light is incident normally on a plane mirror at an angle 30°. What is the angle of reflection?

Second law of reflection says that angle of incidence is equal to the angle of reflection.

Angle of incidence =30°


Thus, angle of reflection=30°


More from this chapter

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1

What happens when a ray of light falls normally (or perpendicular) on the surface of a plane mirror?

 3

A ray of light strikes a plane mirror at an angle of 40° to the mirror surface. What will be the reflection?

 4

A ray of light is incident normally on a plane mirror. What will be the:

(a) Angle of incidence?


(b) Angle of reflection?

 5

What type of image is formed?

(a) In a plane mirror?


(b) On a cinema screen?