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CBSE - X - Physics - Light - Reflection and Refraction


Asked by pritam 2nd April 2010, 5:46 PM
Answered by Expert


Dear Student,

All these are equivalent,

1/ Aperture of a spherical mirror is the diameter of the reflecting surface, the straight line distance between two farthest point on the periphery of the mirror.

2/ In general aperture refers to a tiny hole, you'll encounter this in diffraction, and interference phenomena.

3/ What's the measure of the area exposed to the incident light, it's the area of the mirror, and it's measure is the diameter from which we can obtain the area.




Answered by Expert 2nd April 2010, 6:04 PM

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