Physics, asked by duvarakesh222K, 5 months ago

8. If the power of a lens is – 2 D, what is its focal length?

Answers

Answered by haripkr

2

Answer:

Explanation:

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.

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