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A convex lens is in contact with a conc...

A convex lens is in contact with a concave lens. The magnitude of the ration of their focal lengths is `2//3`. Their equivalent focal length is 30cm. What are their individual focal lengths?

A

`-75,50`

B

`-10,15`

C

`75,50`

D

`-15,10`

Text Solution

Verified by Experts

The correct Answer is:
D
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