Question

If, in this case, the numerical value of the focal length of the corrective lens is 5 m, find the power of the lens as per the new Cartesian sign convention.(All India - 2017)

Answer 1

Answer:

P=1/F

P=1/5

P=0.2D

hence diapter is 0.2D

Answer 2

Dear Student,

◆ Answer -

Power of lens = 0.2 D

● Explanation -

Given that numerical value of the focal length of the corrective lens is 5 m.

Power of the lens is numerically reciprocal of the focal length.

P = 1/f

Substitute values,

P = 1/5

P = 0.2 D

Therefore, the power of the lens is 0.2 D.

Thanks dear. Hope this helps you..