Question

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

explain it

Answer 1

Answer:

Inorder to achieve an image equal to the size of the object the object should be placed at centre of curvature.

Answer 2

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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