Question

When some object is placed in front of spherical mirror we get image of the object in the mirror in context with above answer the following questions what do you mean by magnification what does it indicates when is the value of magnification additive when is the magnification less than 1

Answer 1

Heya Friend ☺
see there are two cases in the spherical mirror when case of concave if the magnification is less than 1 then the size of the image is larger than the object in negative magnification it doesn't matter that the mirror is concave or convex type of image will be real and inverted

- in positive magnification if m>1 then the size of the image is larger and type of image will be virtual and erect

Hope it helps you ☺