Example 1
An electron with momentum 1.0 × 10⁻24 kg·m/s has λ ≈ 0.663 nm.
Mendeleev
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Physics tools › de Broglie wavelength
Mendeleev · Physics
de Broglie wavelength
Matter has wave properties: a particle with momentum p is associated with a de Broglie wavelength λ.
Formula usedλ = h/p
Visual cue · spectrum / wave
Calculate
de Broglie wavelength
What do the symbols mean?
λwavelength
pmomentum
Two worked examples
Example 2
Greater momentum means a shorter wavelength.
Good to knowThis calculator uses the non-relativistic definition λ = h/p; p itself may come from a relativistic or non-relativistic model.