Question

The lens A has a focal length of 25 cm whereas another lens B has a focal length of 60 cm. Giving reason state, which lens has more power : A or B.

Answer 1

Explanation:

25cm is more power bcz which focal lenght is less that power is more..

Answer 2

Answer:

lens of more power Is A.

Explanation:

A/Q

focal length of Lens A=25 cm

p=?

by formula. ...

p=1/f

=1/25×100

p=4D

second case....

focal length of Lens B=60 cm

p=?

p=1/f

p=1/60×100

p=1.66D.

lens of more power is A.