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A point ofject 'O' lies in front of the ...

A point ofject 'O' lies in front of the lens as shown in figure. Find the final position of image formed by the combined lenses.

A

`10 cm` to the right of the lens C

B

`15 cm` to the right of the lens C

C

`20 cm` to the right of the lens C

D

`30 cm` to the right of the lens C

Text Solution

Verified by Experts

The correct Answer is:
D
For the lens 'A' `(1)/(v) -(1)/(u) = (1)/(f), v_(A) = 15 cm`
For the lens 'B' `u_(2) = 10 cm`, so `v_(2) = prop`
For the lens `C u_(3) = prop` so `v_(3) = 30 cm`
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