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Question

Angle of incidence is equal to the angle of reflection. This is true :

A
always
B
sometimes
C
under special conditions
D
never
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Solution
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Correct option is A. always
By laws of reflection, angle of incidence is equal to the angle of reflection. Note that they may appear as unequal when surface is rough. However on a rough surface, due to the changes in the surface boundaries it appears unequal. At actually small surface area, angle of incidence equals the angle of reflection.

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