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प्रश्न
Explain the following term related to spherical lenses:- aperture
उत्तर
Aperture:-
The diameter of sphere of part of which a lens is formed is called the aperture.
संबंधित प्रश्न
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
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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°.
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Illustrate your answer with the help of a ray diagram.
The focal length of a concave mirror is 10 cm. Find its radius of curvature.
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Does the mirror name by your form a real image for all locations? Give a reason for your answer.
Define linear magnification produced by a mirror?
Define the term Normal.
In the figure shown, the image of a real object is formed at the point I. AB is the principal axis of the mirror. The mirror must be:
