Question

We wish to obtain an erect image of an object in front of a concave mirror of focal length is 20cm. What should be the distance of the object from the pole of the mirror? what is the nature of the image?Is the image larger or smaller in size than the object?

Answer 1

In order to obtain an erect image of an object i n front of a concave mirror, the object should be placed between the pole and focus. The distance of the object should be less than 20cm.

The image would be virtual, erect and larger in size than that of the object.