The inside portion of part of a hollow metal sphere of diameter 20cm is polished. The portion will therefore form a?
Concave Mirror: It is a spherical mirror whose outer surface is polished and inner or concave side is reflecting surface.
Convex Mirror: It is a spherical mirror whose inner surface is polished and outer side or convex side is the reflecting surface.
f = \(\frac{m}{4}\) = f = \(\frac{d}{4}\)
f = \(\frac{20}{4}\) = 5cm
There is an explanation video available below.
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