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Magnification by Thin Lenses

A concave mir...

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A concave mirror of focal length 40cm forms a real image of an object of size 3 times size of object. Find out position of both object and image.

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Q. A concave mirror forms a real image of an object placed in front of it at a distance

30 c m

, of size three times the size of object. Find
(a) the focal length of mirro
(b) Position of image.

Q. A concave mirror of focal length f produces an image n times the size of object. If image is real, then distance of object from mirror, is

Q. A real image obtained by a concave mirror is 4 times bigger than the object If the object displaced by 3 cm away from the mirror , the image size becomes 3 times the object size . Find the focal length of the mirror.

Q. A concave mirror has a focal length of

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Q. (a) For which position of an object, a concave mirror forms a real image equal in size to the object?
(b) State one use of a concave mirror.
(c) An object of height 1 cm is placed at a distance of 15 cm from a concave mirror of radius of curvature 20 cm. Find the position, nature and size of the image formed.

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