A boy stands straight in front of a mirror at a distance of 30 cm away from it. He sees his erect image whose height is `(1/5)^(th) ` of his real height . The mirror he is using is

A boy stands straight in front of a mirror at a distance of 30 cm from it. He sees his erect image whose height is (1)/(5) of his real height. The mirror he is using is

A boy is standing in front of a plane mirror at a distance of 3 m from it. What is the distance between the boy and his image?

A girl stands at a distance 30 cm from the mirror. She is able to see her erect image but of 1/5 height of actual height. The mirror will be :

An object is placed in front of a concave mirror at a distance of 7.5 cm from it. If the real image is formed at a distance of 30 cm from the mirror, find the focal length of the mirror. What would be the focal length if the image is virtual.

An object is placed in front of a concave mirror at a distance of 7.5 cm from it. If the real image is formed at a distance of 30 cm from the mirror, find the focal length of the mirror. What would be the focal length if the image is virtual.

A boy 2 m tall stands 40 cm in front of a mirror. He sees an erect image, 1 m high. Which of the following is/are correct about the mirror :