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Show that the wavelength of electromagnetic radiation is equal to the de Broglie wavelength of its quantum (photon).

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Show that the wavelength of electromagnetic radiation is equal to the de Broglie wavelength of its quantum (photon).

 

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  1. Solution:
    For a photon, de Broglie wavelength,

    For an electromagnetic radiation of frequency u and wavelength λ'(= c/v), Momentum,

    Thus the wavelength of the electromagnetic radiation is the same as the de Broglie wavelength of the photon.

    Check the complete chapter with solutions.
    NCERT Solutions for 12th Class Physics: Chapter 11-Dual Nature of Radiation and Matter