Wave Particle Duality

1
Wave Particle Duality

• Day 10

2
deBroglie hypothesis

• Emc2 
• Eh? (? is the frequency)
• ?c/ ? (electromagnetic radiation)
• Combine to get
• ? h/mc for photons
• ? h/mv for particles (v is velocity)

3
Does this mean your soccer ball has wave
properties?

• Yes!
• Find a partner to calculate the wavelength of an
  electron and a soccer ball.

4
Practice problem

• Electron
• me  9.11 1031 Kg 
• ve 106 m/s      
• Soccer Ball
• m1 kg
• v 10 m/s                                      

P Momentum massvelocity
5
Does the soccer balls wavelength matter?