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MotionLab
Every moving particle has a wavelength — usually too small to notice, but electrons show it clearly.
Louis de Broglie proposed in 1924 that all matter has wave properties, not just light — the wavelength is λ = h/(mv). For everyday objects (a baseball), this wavelength is absurdly small (~10⁻³⁴ m), but for electrons it's comparable to atomic spacings, which is why electron diffraction and electron microscopy work.
Electron microscopes exploit de Broglie wavelengths to image objects far smaller than visible light allows — accelerated electrons have wavelengths of picometers, letting us see individual atoms and molecular structures.
de Broglie wavelength (m)
0
λ = h / (mv)
What you entered
Momentum p = mv
9.109e-31 × 1000000= 9.1090e-25 kg·m/sλ = h ÷ p
6.626e-34 ÷ 9.1090e-25= 7.2742e-10 mResult
de Broglie wavelength (m): 0
A particle of mass 9.109e-31 kg moving at 1.000e+6 m/s has a de Broglie wavelength of 7.2742e-10 m.