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प्रश्न
Explain the following term related to spherical lenses:- aperture
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उत्तर
Aperture:-
The diameter of sphere of part of which a lens is formed is called the aperture.
संबंधित प्रश्न
A ray of light is incident normally on a plane mirror. What will be the:
- angle of incidence?
- angle of reflection?
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(b) real principal focus.
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An object is placed at a distance of 0.25 m
in front of a plane mirror. The distance between the object and image will be ______.
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