Physics, asked by ananyasaluja05, 4 months ago

Two lenses of power +2.50 D and -3.75 D are combined to form a compound lens. Its focal
length in cm will be
(a) 40
(b) -40
(c) 80
(d) -80
please attach the solution as well! and answer as soon as possible.. I have exams going!

Answers

Answered by ContetusGaming

1

Answer:

-40

Explanation:

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