Quantum Physics

Quantum Physics

1. black body

   • absorb all electromagnetic radiation
   • emit electromagnetic radiation determine by its temperature

2. PHYSICISTS

   • CLASSICAL THEORY
     • ISAAC NEWTON
       • Light as a single stream of particles
     • THOMAS YOUNG
       • double-slit experiment
       • light is a wave
     • JOHN DALTON
       • basic particle is an atom ( cannot be further divided)
     • J.J. THOMSON
       • discover negatively charged subatomic called electron
   • QUANTUM THEORY
     • MAX PLANK
       • e..m. wave emitted by black bodies is in discrete form (quantum of energy)
     • ALBERT EINSTEIN
       • photon energy concept
       • discover photoelectric effect
         • light is a particle
     • NEILS BOHR
       • line spectrum by hydrogen atoms
         • electrons orbit around its nucleus on certain shell
     • LOUIS DE BROGLIE
       • wave-particle duality (light and subatomic particles)
         • hypothesis- matter (electrons)
           • particle
           • waves

3. De Broglie's Hypothesis

   • wave particle duality (have wave properties)

4. Photon Power, P

5. quantum of energy