Question

Frequencies of light incident on a system of scattering particles are in the ratio of $1:2$. Then, the intensity of scattered light in a particular direction is:

• A. $1:4$
• B. $1:2$
• C. $1:8$
• D. $1:16$

Answer 1

The correct option is D $1:16$

According to Rayleigh scattering law, intensity of scattered light is proportional to the fourth power of incident frequency.

$I\propto f^4$

$I_1:I_2=f_1^4:f_2^4=1^4:2^4=1:16$