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    Physics A-Level

    Exponential attenuation

    What Exponential attenuation means in Physics A-Level, as defined for AQA.

    Definition of Exponential attenuation

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    Reference: AQA

    The decrease in beam intensity is exponential rather than linear because each thin layer removes a constant fraction of the photons still present.
    AQA · Absorption of X-rays (A-level only) (study guide)

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