Question

If we want to get a virtual image of an object using a concave mirror of focal length 13cm range of object from the mirror should be (1)between 0 to 13 (2)at 26cm (3)at 13cm (4)beyond 26cm

Answer 1

Answer:

Object distance should be less than the focal length for the formation of an erect image. Hence, the range of distance of object from the mirror should be less than 15 cm i.e. from 0 to 15 cm in the front of mirror from the pole. The nature of image so formed will be virtual and erect. The size of the image will be larger than object.