Physics, asked by ArslanxD250, 1 year ago

The power of a lens is, - 2 D. What is its focal length ?

Answers

Answered by rini9454

Answer:

Power of a lens is -2D, negative sign indicates it is a Concave lens. Focal length (in meters)=1/power of the lens, thus focal length=1/2=0.5m=50cm.Jul 6, 2019

Explanation:

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