Sir $C$.$V$. Raman was awarded the Nobel Prize in Physics for his work on:

According to Rayleigh, when sunlight travels through the atmosphere, the amount of scattering is proportional to the $n^{\text{th}}$ power of the wavelength of light. Then the value of '$n$' is:

Why is the intensity of light low in a secondary rainbow?

In a given direction,the intensities of the scattered light by a scattering substance for two beams of light are in the ratio of $256:81$. The ratio of the frequency of the first beam to the frequency of the second beam is:

What is scattering of light?

The Sun is visible before actual sunrise and after actual sunset for some time. Explain this phenomenon.