Physics, asked by kamalsodhi82, 11 months ago

the effective diameter of the light reflecting area of the mirror​

Answers

Answered by prmkulk1978
12

The effective diameter of the light reflecting area of the mirror​ is called as Aperture .

Aperture is the reflecting surface area exposed to the light.

Mirror whose aperture is smaller than its focal length, we use the formula

f=R/2

The above formula applies to convex and concave mirror

For plane mirror, Radius of curvature is infinity.

refer the attachment for the diagram

Here MN refers to Aperture.

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