Physics, asked by maximuminsane, 7 months ago

99.The power of a lens is -2.5D.
The type of lens and its focal
length will be respectively-
(1) Convex, -4.40 m
(2) Convex, 0.40 m
(3) Convex, 0.40 m
(4) Convex, -0.40 m

Answers

Answered by simranaditya

0

Answer:

4)-0.40m

Explanation:

P=1/F

F=1/P

F=1/-2.5

F=-0.40m

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