Show that in a spherical mirror both the object and the image are situated on the same side of the focus.

Explanation

In case of a spherical mirror, if we take object distance and image distance from the focus as x and y respectively then, according to Newton's equation,
`xy = f^(2)` [f=focal length of the mirror]
`f^(2)` is always positive. Therefore xy is always positive. So, x and y must be of the same sign. Now x and y will be of same sigh if the object and the image are situated on the same side of the focus.