In Snell's law of refraction, the refractive index of the second medium with respect to the first medium ($n_{21}$) is |
a characteristic of the medium 1 only a characteristic of the medium 2 only independent of the angle of incidence. not dependent on the wavelength of light |
independent of the angle of incidence. |
The correct answer is Option (3) → independent of the angle of incidence. According to Snell’s law, $n_{21} = \frac{\sin i}{\sin r}$ The refractive index $n_{21}$ depends on the optical properties of both media and is independent of the angle of incidence for a given wavelength of light. Correct option: Independent of the angle of incidence. |