Question

write lens formula of 1/2 marks​

Answer 1

Answer:

1/v -1/u=1/f

Explanation:

Where v=image distance

u=object distance

f=focal lenght

Answer 2

Answer:

The lens formula is given by the below expression

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

where, f=focal length

v=position of image

&, u=position of object