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Let f(v) and f(r) are the focal lengths ...

Let `f_(v)` and `f_(r)` are the focal lengths of a convex lens for violet and red lights respectively. If `F_(v)` and `F_(r)` are the focal lengths of a concave lens for violet and red light respectively, then

A

`F_(v) lt f_(R)and F_(v)gtF_(R)`

B

`F_(v)ltf_(R)and F_(v)ltF_(R)`

C

`F_(v)gtf_(R)and F_(v)gtF_(R)`

D

`F_(v)gtf_(R)and F_(v)ltF_(R)`

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