Question #e7625
1 Answer
Explanation:
Light can travel like a wave or like a particle (photons). Louis de Broglie (1892-1987) related both light movements. The formula relates the wavelength to the momentum of a wave/particle.
Re-arrenging
λ = the de Broglie wavelength (m)
h = Planck's constant ()
p = momentum of a particle ()
m = mass of a particle (kg)
Making squares both members of equation
Dividing both sides by 2m
But since the kinetic energy of the electron is equal to the energy gained from accelerating through the electric potential,
Re-arrenging
Finally,
Personal opinion: similar to "thermocouple" (Seebeck) effect.