Consider a spherical shell of radius R at temperature T. The black body radiation inside it can be c

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Consider a spherical shell of radius R at temperature T. The black body radiation inside it can be considered as an ideal gas of photons with internal energy per unit volume u = U/V &#8733; T4 and pressure p = . If the shell now undergoes an adiabatic expansion the relation between T and R is -

Accepted Answer

P = P &#8733; T4using PV = nRT &#8733; T3&#8658; T &#8733;

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