Science, asked by mujahidShaikh, 3 months ago

solve the following problem The focal length of a lens is 20 cm. What is its power?

Answers

Answered by jyotigup312

1

Answer:

we have ,

focal length=20cm=20/100m=0.2m

power=1/focal length

power=1/0.2m

power=10/2m

power=5Dioptre

Answered by madhugupta15283

0

Answer:

Answer is 5 D of the question

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