MSc IV Sem (Physics) Practicals M.Sc. IV Sem (Practicals) Lab (A)1.To determine the particle size using He Ne laser2.To determine wavelength of LASER beam using diffraction grating.3.To determine wavelength of LASER beam using diffraction grating using spectrometer.4. Electron Spin Resonance.5.To study the Hall Effect6.To determine the magnetic susceptibility by Quinck Method.7. Hysteresis Loop Tracer8. To determine Planck Constant by photo diode.9. Verification of Stefen’s law of radiation using incandescent Lamp.10.Curie Temperature