Question1) Answer all the questions:
i) What is regenerative cooling?
ii) Prove that C2m = (2Kt/m).
iii) Describe thermal conduction.
iv) Derive the relation between entropy and probability.
v) Describe thermionic emission.
Question2) Using energy distribution function. Prove that mean kinetic energy of a system is always proportional to temperature.
Question3) What are postulates of quantum physics? Mention plank distribution law.
Question4) Describe following terms:
a) Partition function
b) Heat capacity
c) Enthalpy
d) Helmboltz free energy
e) Gibbs free energy