Question

FOCAL LENGTH OF A LENS IS 25 CMS. WHAT IS ITS POWER?

Answer 1

Your Answer :-

The Above Question is from basic Physics .

Formula to Derive Power is :-

power = $\frac{1}{Foc . Length }$

Comparing this with Above Question . We get the Following Equation :-

Power = $\frac{1}{25} cm.s$

= 0.04 cm.s

^_^ ^_^

# Be Brainly

Answer 2

Focal length of a lens = 25 cm or 0.25 m

Power = 1/ Focal length

Power = 1 / 0.25

Power = + 4 D