Question

When an object is placed at a distance of 40 cm from a concave spherical mirror, then two times magnified
real image is obtained. Where should this mirror form a three-times magnified virtual image?

Answer 1

Answer:

Since focal length of concave mirror given is 20cm l. Object is at 40cm distance which means it is at centre of curvature. hence, image will be formed of same size and at centre focus only but real and inverted.

Explanation:

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