A student wanted to pick up a concave mirror from three mirror A, B, C lying on a table to find its focal length. He looks into mirror A, he finds his image enlarged and erect. When he looks in mirror B, his image is diminished and erect. When he looks in mirror C, his image is erect and of same size. Find the correct identification of A, B C in respective order.

A student wanted to pick up a concave mirror from three mirror A, B, C

1.	A student wanted to pick up a concave mirror from three mirror A, B, C lying on a table to find its focal length. He looks into mirror A, he finds his image enlarged and erect. When he looks in mirror B, his image is diminished and erect. When he looks in mirror C, his image is erect and of same size. Find the correct identification of A, B C in respective order.
Answer» Solution :(i) Mirror A is concave. When the face is PLACED close to the concave mirror, it produced enlarged and erect image. (ii) Mirror B is convex. When the object is at finite distance from the mirror the image formed by the convex mirror is diminished, virtue and erect. (iii) Mirror C is place. Image formed by a PLANE mirror us ALWAYS virtue and erect. The SIZE of the image is equal to that of the object.