Question

Explane the experiment to find out the focal length of a convex lens he focal length of a convex length of convex lens is 100cm find its power

Answer 1

Answer:

1 dioptre

Explanation:

power of lens = 1 / f ( in metres )

( or )

100/f ( in cm )

according to the given data

f = 100cm

so

power of lens (P) = 100 / f

= 100/100

= 1 dioptre