Question

define lens formula​

Answer 1

Explanation:

In optics, the relationship between the distance of an image (v), the distance of an object (u), and the focal length (f) of the lens is given by the formula known as Lens formula.

Answer 2

The formula which gives relation between focal length, image distance and object distance of lens is called lens formula.

It is given below:

$\frac{1}{f} = \frac{1}{u} + \frac{1}{v}$