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संबंधित प्रश्न
What is a virtual image?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
Why is a hole burnt in the carbon paper?
A ray of light travels from a denser medium to a rarer medium. How will it bend?
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°.
In each case (a) and (b), draw reflected rays for the given incident rays and mark focus by the symbol F.
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
The radius of curvature of a convex mirror is 40 cm. Find its focal length.
An object of height 2 cm is placed at a distance of 20 cm in front of a concave mirror of a focal length of 12 cm. Find the position, size, and nature of the image.
Define the term Normal.
