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A convex lens of focal length 20 cm and ...

A convex lens of focal length 20 cm and a concave lens of focal length 10 cm are placed 20 cm apart. In between them an object placed at distance x from the convex lens.
What is the value of x (in cm ) so that images from by both the lenses coincides ?

A

`20(sqrt(3)-1)` and `1/(sqrt(3))`

B

`10(sqrt(3)-1)`

C

`20/(sqrt(3))`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
D
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