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प्रश्न
Name the kind of mirror used to obtain :
A real and enlarged image
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उत्तर
Concave
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संबंधित प्रश्न
A concave lens produces an image 20 cm from the lens of an object placed 30 cm from the lens. The focal length of the lens is:
(a) 50 cm
(b) 40 cm
(c) 60 cm
(d) 30 cm
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
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.
In each case (a) and (b), draw reflected rays for the given incident rays and mark focus by the symbol F.
Name the kind of mirror used to obtain:
A real and diminished image.
Why does a driver use a convex mirror instead of a plane mirror as a rear view mirror?
Illustrate your answer with the help of a ray diagram.
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
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 ______.
