Q3 of 20 Page 65

Answer the following:

State the laws of reflection.

Following are the two laws of reflection of light.


1. The normal line, the incident ray and the reflected ray will be on the same plane.


2. The angle of incidence is always equal to the angle of reflection of light.


Figure below illustrates these laws.



Here ∠ I = ∠ r .


More from this chapter

All 20 →
3

Answer the following:

Give one reason to prove that light is a form of energy.

 3

Answer the following:

What is the difference between regular and irregular reflections?

 3

Answer the following:

Mention the uses of concave mirrors.

 3

Answer the following:

Why is convex mirror used as rear view mirror in motor vehicles?