41. a quantum system with energy levels nhw,n= 0, 1, 2,.. o is in equilibrium at a temperature t. the partition function characterising the system is given by (

41. A quantum system with energy levels nhw,n= 0, 1, 2,.. o is in equilibrium at a temperature T. The partition function characterising the system is given by (A) In kT (B) eT 1 (C)1-e ()1- "r