Hindi, asked by isranidevkaran, 6 months ago

if two lenses of focal length 20cm and 10 cm used in the combination what will be the combined power of lense

Answers

Answered by mohannewar8

1

Answer:

power of lense = 1÷20 + 1÷10

= 0.05 + 0.5

Explanation:

= 0.55

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