Physics JPU

Notice Mr. Narayan Kumar Jha, Mr. Awdhesh Kumar and Ms. Priyadarshini are hereby directed to present their revised synopsis before the Departmental Research Committee (DRC) on 03 July 2026 (03/07/2026) at the scheduled meeting. Head

Notice Mr. Narayan Kumar Jha and Mr. Awdhesh Kumar are hereby directed to present their revised synopsis before the Departmental Research Committee (DRC) on 03 July 2026 (03/07/2026) at the scheduled meeting. Head

Notice for the students of Pre-PhD course work (PAT-23) ----------------------------------------- Date of Presentation of Synopsis before DRC is scheduled to be held on 03/07/2026. Head

*Notice* All students of Semester I and Semester II are hereby informed that their Admit Cards have been issued and can be collected from the Department during working hours.

Admit cards for semester I and II can be collected from the Department.

Photo from Alok

Photo from Alok

Photo from Alok

Notice for the registered Ph.D Student All the research scholars of PAT- 21 and PAT- 22 are directed to submit their six monthly progress reports (2 copies)  in the prescribed format. Head University Department of Physics

Assignment Questions Semester – III (Session: 2023–25) Paper: CC–13 (Nuclear and Particle Physics) Q.1. Explain the concept of nuclear reaction cross-section (σ). Discuss its physical significance and units. Also describe low-energy neutron–proton (n–p) scattering and explain how scattering cross-section provides information about nuclear forces. Q.2. Discuss the Single-Particle Shell Model of the nucleus. Explain the origin and significance of magic numbers. Give experimental evidence supporting the existence of magic numbers and compare the Shell Model with the Liquid Drop Model. Paper: CC–10 (Atomic and Molecular Physics) Assignment Questions Q.1. Derive the expression for the vibrational energy levels of a polyatomic molecule. Discuss the different modes of vibration and their significance in molecular spectroscopy. Q.2. Explain the Quantum Theory of Raman Effect. Discuss the origin of Stokes and Anti-Stokes lines with suitable energy level diagrams. Q.3. Draw the schematic energy-level diagram of a three-level laser system. Derive the conditions for population inversion and provide the mathematical analysis of laser action.