Question

Scattering of light depends upon? (This question has multiple correct options correct)
A. Wavelength of light
B. Frequency of light
C. Size of the particle.
D. Speed of light

Answer 1

Hint: Scattering of light refers to the scattering of lights of different color. Think about the difference in properties of the different colored lights. Also think whether any other factors can affect the scattering of light.

Complete step by step answer:
Scattering of light is the phenomenon in which light rays get deviated from its straight path on striking an obstacle like dust or gas molecules, water vapors and other minute particles.
The electromagnetic spectrum is made up of many different waves of different wavelengths. The amount of scatter of a wave depends on the factor, knows as scattering factor, by
${\displaystyle \frac{1}{{\lambda }^4}}$
Thus with increasing wavelength scattering becomes less.
Now, we know that wavelength and frequency also depends on each other and is inversely proportional to each other by the famous equation
$c=\nu \lambda$
Which gives us,
$\nu \propto {\displaystyle \frac{1}{\lambda }}$
Thus this shows us that scattering of light also depends on frequency of light.
The scattering of light and the color of the scattered light depends upon the size of the particles. Smaller particles scatter the light of shorter wavelengths, like blue and violet and larger particles scatter longer wavelengths like red and orange.
Thus scattering of light also depends on the size of the particle.
Hence options (A), (B) and (C) are correct.

Additional Information: Since wavelength of blue light is least amongst the visible spectrum thus it is scattered the most. Hence the sky appears blue.

Note: Do not forget that wavelength and frequency are inversely proportional and thus interrelated and hence if something depends on wavelength it also depends on frequency. Also carefully think about the size of the particle.