At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of the image is equal to the size of the object.

25 cm

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50 cm

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100 cm

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75 cm

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Solution

The correct option is B 50 cm
Concave mirror forms real,inverted and same size image of an object placed at its centre of curvature.
$u = R = 2 f = - 50 c m$

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At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to size of the object.

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At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of the image is equal to the size of the object.

The correct option is B 50 cmConcave mirror forms real,inverted and same size image of an object placed at its centre of curvature. u=R=2f=−50 cm

The correct option is B 50 cm
Concave mirror forms real,inverted and same size image of an object placed at its centre of curvature.
$u = R = 2 f = - 50 c m$