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It is desired to make an achromatic comb...

It is desired to make an achromatic combination of two lenses, `(L_(1)& L_(2))` made of materials having dispersive power `omega_(1)` and `omega_(2)(ltomega_(1))`. If the combination of lenses is converging then:

A

`L_(1)` is converging

B

`L_(2)` is converging

C

Power of `L_(1)` is greater than the power of `L_(2)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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