Question

Whai is power of convex lense of focal length 0.5 m.​

Answer 1

Explanation:

f = 0.5 m

P = 1/f = 1/0.5 = +2 D

hope  this helps u

Answer 2

The algebraic sign of the magnifying power indicates whether the lens causes an incident pencil of parallel light rays to converge or to diverge. Thus, a diverging lens having a focal length of 1 m has a power of -1 diopter, and a converging lens of focal length 0.5 m has a power of two diopters.

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