Science, asked by abhishek2894, 1 year ago

A convex lens of focal length 25 cm is placed in contact with a concave lens of focal length 20 cm. Calculate the power of this combination.

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Answered by jack8442

1

a convex lens of focal length 25 cm is placed in contact with a convex lens of focal length 20cm the power of this combination is 0.09

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