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    Physics A-Level

    Isotropic-emission assumption

    What Isotropic-emission assumption means in Physics A-Level, as defined for AQA.

    Definition of Isotropic-emission assumption

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    Reference: AQA

    Power is radiated uniformly in all directions, so the same total power passes through every sphere of radius r.
    AQA · Classification by temperature, black-body radiation (A-level only) (study guide)

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