Question

please ans this question​

Answer 1

Answer:

Option C is correct ,Focal length in m

As we know that the power of a lens is defined as the ability of a lens to converge or diverge incoming light rays. ... Thus, the relation between power and focal length is inverse such that power is given as the reciprocal of the focal length of a lens.

Answer 2

focal lenght

Explanation:

lenght is defined as the ability of a lense to conserve or diverge incomming light rays.thus realation between power and focal lenght is inverse such that power is given as the reciprocal of the focal lenght of a lens..