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    Physics A-Level

    de Broglie wavelength

    What de Broglie wavelength means in Physics A-Level, as defined for AQA, OCR.

    Definitions of de Broglie wavelength

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    Reference: AQA

    Given by the relation λ = h/p, which links an electron's momentum to its wavelength and supports the wave description of particles.
    AQA · Wave-particle duality (study guide)
    Given by λ = h/p, it links the electron momentum to the diffraction pattern, and increasing the accelerating voltage decreases it.
    OCR · Wave–particle duality (study guide)
    A particle of momentum p has this wavelength given by λ = h/p, so momentum and wavelength are inversely proportional.
    AQA · Wave-particle duality (study guide)
    The wavelength λ = h/p of an electron, where p is its momentum gained by acceleration through a potential difference.
    AQA · Nuclear radius (A-level only) (study guide)
    Increasing electron energy decreases it, so the pattern narrows and the first minimum moves to a smaller angle.
    AQA · Nuclear radius (A-level only) (study guide)
    λ = h/p, which relates the electron momentum to the spacing of the diffraction pattern.
    OCR · Wave–particle duality (study guide)

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