Question

Rays from the sun converges at a point 15 cm in front of a concave mirror .Where
should an object be placed so that the size of the image is equal to the size of object​

Answer 1

Answer:

In case of a concave mirror, the size of image and object will be same if the object is placed at 2f. Hence, in this case object must be place at 2f or 2 × 15 = 30 cm.

Explanation:

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