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प्रश्न
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उत्तर
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संबंधित प्रश्न
A simple microscope is used by watch repairers. Give reason.
Explain the following term related to spherical lenses:- principal focus
An image that cannot be obtained on a screen is called ______.
The letter F is placed in front of a plane mirror:
What is the name of the phenomenon involved?
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
An object of length 4 cm is placed in front of a concave mirror at distance 30 cm. The focal length of mirror is 15 cm.
- Where will the image form?
- What will be the length of image?
Complete the following diagrams shown in the following figures by drawing the reflected rays.
The spherical mirror used in a beauty parlour as make-up mirror is _______.
The radius of curvature of a spherical mirror is 18 cm. What is the focal length of this mirror?
