KARNATAKA STATE OPEN UNIVERSITY I Semester M. Sc Degree Examination PHYSICS: Atomic and Molecular Physics Time: 3 Hours Max. Marks: 80 Answer all questions 1. a) Obtain an expression for the rotational energy of a diatomic molecule considering rigid rotator model. b) Briefly explain Born –Oppenheimer approximation (10+5) (OR) 2. a) With the help of […]

I Semester M. Sc Degree Examination PHYSICS: Classical Mechanics Time: 3 Hours Max. Marks: 80 Answer all questions 1. a) Prove that the sum of PE and KE remains constant for a system of particles moving under the action of a conservative force. b) Define centre of mass for a system of particles (10+5) (OR)

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