Question

lenz makers formula ​

Answer 1

Answer:

for thin lenses

1/f =(n-1) (1/r1- 1/ r2 )

Answer 2

$\huge\mathfrak\green{Heyaa!}$

$\huge\mathfrak\red{Answer:-}$

Refer to the attachment!!!!

$\huge\mathfrak\purple{Hope it helps!!}$