Question

A convex lens of refractive index $n$ behaves as a convex lens of smaller power in a liquid of refractive index $n_1$ and as a concave lens in another liquid of refractive index $n_2$. Then relation between $n,n_1$ and $n_2$ is

• A. $n>n_1>n_2$
• B. $n_2>n>n_1$
• C. $n_1$
• D. $n=n_1=n_2$

Answer 1

Answer: (B)

$n_2>n>n_1$

Answer 2

$n_2 > n > n_1$