1. Compton Effect
Physics 12Adv

2. Compton Effect
The Compton Effect deals with a photon that is incident upon an electron at rest
Following the collision, the photon is scattered at an angle as is the elctron
Since the photon has less energy than the incident photon, it must have a lower frequency

3. Compton Effect
Since we know that in a collision momentum must be conserved and the scattered electron has a momentum, the incident photon must also have momentum
This lead to the equation:

4. Matter Waves
If a photon can have both wave and particle like nature, it stands to reasons that a particle can also have a wave like nature
de Broglie determined the wavelength of matter waves using the following equation:

5. Matter Waves Determine the wavelength of the following:
You travelling in a car at 100km/h
An electron orbiting the nucleus at .9c
Are either of these wavelengths significant?

6. Verifying Matter Waves
In order to demonstrate that matter (like electrons) have wavelike behaviour, it must be possible to show that they will have interference patterns
von Laue and Bragg developed an X-ray diffraction technique that displays these patterns

7. Wave-Particle Duality
Within 30 years of Planck’s presentation of quantization, the particle nature of light and wave-like behaviour of subatomic particles had been accepted
However, the previous theories of Newton and Maxwell were not abandoned meaning that everything has the ability to act as a particle and a wave