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Q.

The portion of spherical mirror from which reflection takes place is

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a

Aperture

b

Focal length

c

Both (a) & (b)

d

Radius of curvature

answer is C.

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Detailed Solution

The diameter of the reflecting surface of a spherical mirror is called its aperture. It gives the size of the mirror. It is that portion of a mirror from which the reflection of light actually takes place.

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