Question

Calculate the number of photons in 10L of radiation in a thermal equilibrium at 500 K.​

Answer 1

Answer:

Energy =nhν

where, n= number of photons

h= Plank's constant =6.6×10−34 Jsec

ν= Frequency

∴330=n×6.6×10−34×5×1013

∴n=6.6×10−34×5×1013330

∴n=1×1022 photons

Therefore the number of photons is 1022

Answer 2

Explanation:

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