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प्रश्न
Define the term Aperture.
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उत्तर
Aperture is the distance between the extreme points on the periphery of the mirror.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal axis
A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm, find the focal length of the lens.
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State the number of images of an object placed between two mirrors, formed in each case when mirrors are inclined to each other at (a) 90°, and (b) 60°.
Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw ray diagram to show the formation of image of an object OA.
Name the kind of mirror used to obtain :
A real and enlarged image
Name the type of mirror used in the following situation:
Side/rear-view mirror of a vehicle
Support your answer with reason.
A spherical mirror whose reflecting surface is curved outwards is called ______ mirror.
