Question

Find the power of convex lens of focal length is 1.5m

Answer 1

Answer:

Given to find the power of convex lens

Explanation:

Given focal length of lens f = 1.5 m

Power of a lens is given as

P = 1 / f

P = 1 / 1.5

P = 0.667 D

Answer 2

Answer: $\frac{1}{f} = D$

$\frac{1}{D} = 1.5$

1.5 x D = 1

D= 1/1.5

D= 10/15

D=2/3

= 0.66

Explanation: