Question

write The Lens Maker Formula and explain the terms in it

Answer 1

hope this helps u friend

Answer 2

Explanation :

The lens maker formula gives the relationship between focal length, radius of curvature and the refractive index of the lens.

Mathematically it is given as :

$\dfrac{1}{F}=(n-1)(\dfrac{1}{R_1}-\dfrac{1}{r_2})$

Where,

F is the focal length

n is the refractive index

$R_1,R_2$ are the radius of curvature of the lens

In case of converging lens :

$R_1$ is positive

$R_2$ is negative

F is positive

In case of diverging lens :

$R_1$ is negative

$R_2$ is positive

F is negative.

Hence, this is the required solution.