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What is Rayleigh's scattering?...

What is Rayleigh's scattering?

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(i) If the scattering of light is by atoms and molecules which have size a very less than that of the wave length `lamda` of light `a lt lt lamda`, the scattering is called Rayleigh's scattering.
(ii) The intensity of Rayleigh's scattering is inversely proportional to fourth power of wavelength.
` I prop (1)/(lamda^4)`
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Knowledge Check

  • As per Rayleigh's scattering law, amount of scattering is :

    A
    directly proportional to fourth power of wavelength
    B
    inversely proportional to fourth power of wavelength
    C
    inversely proportional to square of wavelength
    D
    directly proportional to square of wavelength

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