Physics, asked by praveensaini5678, 10 months ago

A convex lens of focal length 25 cm is placed in contact with a concave lens of focal length 20 cm. find i) first focal length of the combination of lenses. ii) power of combination. what is the nature of the combination.?

Answers

Answered by toobafatima9262

2

Answer:

here is your answer

Explanation:

nature of the combination is concave.

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