what do we mean by aperture .define with diagram 

Asked by Sanchit Sharma | 2nd Mar, 2015, 06:49: PM

Expert Answer:

Aperture of a lens is the effective diameter of its light transmitting area. Therefore, the brightness i.e. the intensity of the image formed by a lens which depends on the amount of light passing through the lens will vary as the square of the aperture of the lens.

Answered by Faiza Lambe | 2nd Mar, 2015, 07:31: PM

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