Question

of a convex lens
-(1)
(6) What is the power of
if
its
focal length is 20 cm .
(a) +2 D (6) - 52
(d) +50
(C) +70​

Answer 1

$[tex]\mathbb\color{red}{MAKE} \color{blue}{ME}\color{Green} BRAINLIST$[/tex]

$[tex]\mathbb\color{red}{MAKE} \color{blue}{ME}\color{Green} BRAINLIST$[/tex]

Answer 2

Answer:

a) +2 D

it is the answer.