Q1 of 112 Page 310

What is meant by 'incident ray'?

A ray of light that strikes a surface or falls on a surface before being reflected, transmitted or absorbed is known as incident ray. For eg-


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2

What is meant by 'reflected ray'?

 3

How many reflected rays can there be for a given single incident ray falling on a plane mirror?

 4

What do you understand by the term 'point of incidence'?

 5

What is 'normal' in the reflection of light from a plane mirror?