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प्रश्न
Answer the following question.
Write the modification in the curvature of the eye lens which enables us to see the nearby objects clearly?
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उत्तर
There should be a contract in ciliary muscles, that will increase the curvature of the eye lens and becomes thicker consequently the focal length of the eye lens will decrease. It will enable us to see near objects clearly.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal focus
A virtual image larger than the object can be produced by a ______.
An object 5 cm high forms a virtual image of 1.25 cm high, when placed in front of a convex mirror at a distance of 24 cm. Calculate:
- the position of the image
- the focal length of the convex mirror.
Define the following term in relation to concave mirror.
Principal axis
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 ______.
Spherical mirrors are one form of ______ mirrors.
Explain why a ray of light passing through the center of curvature of a concave mirror, gets reflected along with the same pattern.
