Chapter 26, Problem 1FC

To determine

The correct option.

Answer to Problem 1FC

The correct option is (c) $n_{\text{C}},n_{\text{A}},n_{\text{B}}$.

Explanation of Solution

When a ray of light travels from liquid A to liquid B, the incident ray gets refracted and bends away from the normal in liquid B. Therefore, the refractive index of liquid A is greater than the refractive index of liquid B, that is, $n_{\text{A}}>n_{\text{B}}$.

When a ray of light travels from liquid A to liquid C, the incident ray gets refracted and bends towards the normal in liquid C. Therefore, the refractive index of liquid A is less than the refractive index of liquid C, that is, $n_{\text{A}}<n_{\text{C}}$.

Hence, the refractive index of C is greater than the refractive indices of A and B, that is, $n_{\text{C}}>n_{\text{A}}>n_{\text{B}}$.

Conclusion:

Hence, the correct option is (c) $n_{\text{C}},n_{\text{A}},n_{\text{B}}$.