Question

How far from pole of concave mirron of focal length 10 cm should an object be placed to form an image who size is half
of the size of object?
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Answer 1

Answer:

For getting an erect image using a concave mirror, the object should be placed at a distance less than the focal length. i.e. 15 cm from the pole. The image formed will be virtual, enlarged and erect.

Answer 2

Explanation:

the object should be place d 15 com from pole and image will be virtual enlarge and erect