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JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Numerical Value Type Questions - Dual Nature of Radiation and Matter

  • question_answer
    A monochromatic source of light operating at 200W emits \[4\times {{10}^{20}}\] photons per second. Find the wavelength (in nm) of the light.

    Answer:

    400


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