Compute the position of the object placed in front of a concave mirror of focal length f so that the image formed is of the same size of the object.

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Solution

Since we know that for a concave mirror if object is at $2 f$ then magification of image is unity i.e. $v = u = - 2 f$ for a concave mirror..

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Compute the position of the object placed in front of a concave mirror of focal length f so that the image formed is of the same size of the object.

Since we know that for a concave mirror if object is at 2f then magification of image is unity i.e. v=u=−2f for a concave mirror..

Since we know that for a concave mirror if object is at $2 f$ then magification of image is unity i.e. $v = u = - 2 f$ for a concave mirror..