In fog, photographs of the objects taken with infra-red radiations are more clear than those obtained during visible light because

Question

In fog, photographs of the objects taken with infra-red radiations are more clear than those obtained during visible light because (A) scattering of l-R light is more than visible light (B) the intensity of I-R light from the object is less (C) scattering of l-R light is less than visible light (D) l-R radiation has lesser wavelength than visible radiation

Tardigrade Admin · Accepted Answer

In fog, visible light is scattered more according to Rayleigh scattering, but scattering of infrared radiations is less due to high wavelengths, hence in fog, photographs of the objects taken with infrared radiations are more clear.

Q. In fog, photographs of the objects taken with infra-red radiations are more clear than those obtained during visible light because

scattering of l-R light is more than visible light

the intensity of I-R light from the object is less

scattering of l-R light is less than visible light

l-R radiation has lesser wavelength than visible radiation

In fog, visible light is scattered more according to Rayleigh scattering, but scattering of infrared radiations is less due to high wavelengths, hence in fog, photographs of the objects taken with infrared radiations are more clear.