Q. 22

What is the difference between regular reflection of light and diffuse reflection of light? What type of reflection of light takes place from?

(a) A cinema screen

(b) A plane mirror

(c) A cardboard

(d) Still water surface of a lake

Answer :

The difference between regular reflection of light and diffuse reflection of light is that in regular reflection, a parallel beam of incident light is reflected as a parallel beam only in one direction; while in diffuse reflection, a parallel beam of incident light is reflected in different directions.

(a) The type of reflection of light that takes place from a cinema screen is Regular reflection


(b) The type of reflection of light that takes place from a plane mirror is Regular reflection


(c) The type of reflection of light that takes place from a cardboard is diffuse reflection


(d) The type of reflection of light that takes place from still water surface of a lake is Regular reflection


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