Question

given magnification of a mirror is m = -1/2. which mirror it could be?

Answer 1

Answer:

convex

Explanation:

A negative magnification indicates that the image is inverted. If the object is placed closer to a converging lens than the focal length, the rays on the far side of the lens diverge.

Answer 2

As magnification is less than 1, therefore the image is diminished.

As magnification is negative so, I/O is also negative.

Since, O (object height) is always positive, therefore image height is negative, therefore image is real, inverted diminished.

m=I/O=v/u

Hence the mirror is a concave mirror. The object is placed beyond C.