1. Light -wave or particle?
PHYSICS 1
Somnath Bharadwaj and Pratik Khastgir, Department of Physics and Meteorology, IIT Kharagpur, India

2. The Compton Effect

3. Photon electron collision

4. Conservation of Energy

5. Conservation of momentumx y
Square and add

6. Momentum and Energy

7. Change in wavelength

8. Compton Effect

9. Wave nature of particles
De Broglie in 1924
Every particle has an associated wave

10. Dispersion Relation

11. Interpretation? Particle is localized Wave is defined everywhere
Momentum is known
No position energy

12. Electron diffraction Davison and Germer 1927
Verified wave nature of particles