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Answer to Question #50645 in Molecular Physics | Thermodynamics for sargam

Question #50645
i) Write an expression for Planck’s law for energy density of photons in a cavity and
calculate total energy density, u. ii) Consider sun as a black body whose interior consists
of photons gas at T=3x 10^6 K Calculate the energy density of the solar radiations.
Take σ=7.56x 10^-16 Jm^-3 k^-4
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