Answer the following:-
--.4m
1) Distinguish between Convex mirror & Concave mirror.
2) Define:- (a) Pole (b) Focal length of a mirror.
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Spherical mirrors whose inner side is reflecting are called concave mirrors. Spherical mirrors whose outer side is reflecting are called convex mirrors. It's focus and centre of curvature lies behind the mirror.
Pole - The central point of the reflecting spherical surface is called pole
The focal length ( f ) is the distance from a lens or mirror to the focal point ( F ). This is the distance from a lens or mirror at which parallel light rays will meet. (right) a concave mirror.
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