Question

Give formula for linear magnification of spherical mirror.

Answer 1

Linear magnification of spherical mirror $m=\frac{-V}{U}$

For convex mirror

$U\to -veV\to +ve$

Hence,

$m=\frac{-V}{-U}=\frac{V}{U}$

For concave mirror

$U\to -veV\to -ve$

Hence,

$m=\frac{-V}{U}=\frac{-V}{U}$