Can you explain this line more briefly-

Asked by  | 11th Nov, 2012, 12:39: PM

Expert Answer:

An aperture is an opening through which light enters the optical instrument.
Aperture determines the amount of light intercepted by the mirror.
The aperture of a spherical mirror is its diameter.
The diameter of spherical mirror is twice the radius of curvature of sherical mirror.

Answered by  | 12th Nov, 2012, 12:50: AM

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