Louis de Broglie found that the particles in matter have wave properties. The wavelength of a particle can be calculated using de Broglie's equation:
wavelength = h/mv
where m is the mass of the particle, v is the velocity that the particle is moving at and h is Planck's constant equal to 6.626e-34 j*s. This module shows the relationship between the wavelength and the inverse velocity of the particle.
INSTRUCTIONS
1. Select the type of partivle whose wavelength will be calculated. Do this by clicking on one of the three particle option buttons.
electron = 9.11e-31 Kg
proton = 1.67e-27 Kg
neutron = 1.67e-27 Kg
2. Use the scroll bar to vary the velocity of the particle and calculate the wavelength.