Question

Define focal plane and aperture of a mirror.

Answer 1

Answer:::::3)focal length - it is the distance between pole and the centre of curvature. 4)centre of curvature - it is the centre of that sphere of which of the mirror is a part. 5)Aperture -It is the length of the mirror from where reflection take place sometimes it is understood as the diameter of mirror.

Answer 2

hey mate your answer is here...........

focal length :- the focal length of an optical system is a measure of how strongly the system converges or diverges light.............

and

aperture:- in optics, an aperture is a hole or an opening through which light travels ......more specifically , the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane.....

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