Find the deBroglie wavelength of a 1kg bowling ball traveling at 1m/s.

Planck's constant: h = 6.6×10^-34J·s
wavelength = h/mv
= 6.6×10^-34J·s/(1kg·m/s)
= 6.6×10^-34 meters.

Find the deBroglie wavelength of an electron traveling at 1m/s.

electron mass = 9.1×10^-31kg
wavelength = h/mv
= 6.6×10^-34J·s/(9.1×10^-31kg·m/s)
= 0.725×10^-34+31m = 0.725×10^-3m = 0.725mm

Find the wave velocity w of the deBroglie wave which corresponds to a particle moving with velocity v.

w = wavelength × frequency
so the wave crests move at half the speed of the particle (???).

Examples --- What this is an example of

---