Teaching MPPSC Assistant Professor Mock Test Series 2025 Physical Sciences Thermodynamic and Statistical Physics
For a black body in a cavity, photons are created and annihilated freely as a result of emission and absorption by the walls of the cavity. This is because:
1
the chemical potential of the photons is 0.
2
photons obey Pauli exclusion principle.
3
photons are spin-1 particles.
4
the entropy of the photons is very large.