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प्रश्न
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उत्तर
Magnification = height of image / height of object.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- aperture
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.
At which point of the spherical mirror the carbon paper is placed?
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
Which type of spherical mirror will it provide?
State the two kinds of spherical mirror and distinguish them with the aid of proper diagrams.
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
If the real image of a candle flame formed by a lens is three times the size of the flame and the distance between lens and image is 80 cm, at what distance should the candle be placed from the lens?
A shopkeeper wanted to fix a mirror which will give a maximum view of his shop. What type of mirror should he use? Give reason.
