Question

from mirror formula, focal length (f) is _____________________[ ] a) f=uv/u+v (b) f=u+v/uv (c) f=u-v /uv (d) f=uv/u-v​

Answer 1

Answer :-

From mirror formula, focal length (f) is f=uv/u+v.

$f \: = \: \frac{uv}{u +v}$