Question

. Rayleigh-Jean's law holds good for which of the following?
a) Shorter wavelength
b) Longer wavelength
c) High temperature
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Answer 1

Answer:

b

Explanation:

longer the wavelengths lesser is the scattering.

Answer 2

Rayleigh-Jean's law holds good for Longer wavelength.

• Rayleigh-Jean's law explains the energy spectrum (distribution) in black body radiation.
• It is an approximated formula and thus holds good only for radiations having long wavelengths.
• According to this law,

        Energy distribution in black body radiation ∝ absolute temperature and

                                                                       ∝ 1/ (Wavelength)⁴

• Hence, the longer the wavelength (λ), the greater is the energy distribution.