De Broglie wavelength

Pick a particle and a speed to see its wavelength, and why only tiny particles show wave behaviour.

Learn de Broglie wavelength properly

StudyAI writes clear notes on any topic you study, with practice quizzes, past-paper questions explained, and interactive models like this one in the notes.

Get free notes and a quiz on this
Free to start. No card needed.

Questions students ask

Why don't we see a football diffract?

Its wavelength is around 10⁻³⁴ m, far smaller than any gap, so it shows no wave effects. Electrons have wavelengths close to the spacing of atoms.

What formula does it use?

λ = h/p = h/(mv), h = 6.63 × 10⁻³⁴ J s.

Free notes on de Broglie wavelength

More physics tools

Ohm's law: V = IR
Work out voltage and power from current and resistance with Ohm's law, and see the straight-line V–I graph of …
Electrical power: P = VI
Find the power of an appliance from voltage and current with P = VI, and its resistance. Free interactive elec…
Electricity cost calculator (kWh)
Work out how many kilowatt-hours an appliance uses and what it costs to run each day and month. Free kWh and e…
Kinetic energy: ½mv²
Calculate kinetic energy from mass and speed and see why doubling the speed quadruples the energy. Interactive…
All interactive tools
Use this on your own site or class page

Copy this code. It is free to use, as long as the link stays.