Jayasree posted an Question
February 06, 2022 • 02:18 am 30 points
  • CSIR NET
  • Physical Sciences

Please explain

Q45. The energy density and pressure of a photon gas are given by u = aT" and P=. Where Tis the temperature and a is the radiation constant. The entropy per unit volume is given by aaT. The value of a is.... (up to two decimal places) Ans. 1.33

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