Physics, asked by senthilkumarkr2016, 1 month ago

2. The power of the lens is +2.5D. What will be the focal length of the lens?
a) +40cm
b) -40cm
c) +80cm
d) -80cm

Answers

Answered by Anonymous

1

Answer:+40cm

Explanation: Since the focal length of the lens is positive so it is a convex lens. It is a converging lens.

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