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A double convex lens of refractive index...

A double convex lens of refractive index `m_(1)` is immersed in a liquid of refractive index `m_(2)`. This lens will act as:

A

Either as a convex or as a concave lens depending solely on R

B

A convex lens depending on `n_(1) " and " n_(2)`

C

A concave lens depending on `n_(1) " and " n_(2)`

D

A convex lens of same focal length irrespective of R, `n_(1) " and " n_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B, C
`(n)_(liquid) gt (n)_("lens")`
Lens will behave like concave
If `(n)_("liquids") lt (n)_("lens")`
Lens will be behave like convex.
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