The wavelength of visible light range of 400 to 750mm .what is the corresponding range of photon energies for visible light

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The wavelength of visible light range of 400 to 750mm .what is the corresponding range of photon energies for visible light

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Orla Orla 2 weeks 2021-07-22T03:31:50+00:00 1 Answers 1 views 0

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    2021-07-22T03:33:23+00:00

    Answer:

    The range of the photon energies is between:

    2.652 x 10⁻²⁵ J    to    4.973 x 10⁻²⁵ J

    Explanation:

    The energy of a photon is calculated using the following equation;

    E = hf

    where;

    h is Planck’s constant = 6.63 x 10⁻³⁴ Js

    f is frequency of the photon

    E = h \frac{c}{\lambda} \\\\where;\\\\\lambda \ is \ the \ wavelength\\\\c \ is \ the \ speed \ of \ light \ = 3\times 10^8 \ m/s\\\\When \ \lambda = 400 \ mm = 400 \ \times 10^{-3} \ m\\\\E = \frac{(6.63 \times 10^{-34})(3\times 10^8)}{400 \times 10^{-3}} \\\\E = 4.973 \times 10^{-25} \ J

    When \ \lambda = 750 \ mm = 750 \ \times 10^{-3} \ m\\\\E = \frac{(6.63 \times 10^{-34})(3\times 10^8)}{750 \times 10^{-3}} \\\\E = 2.652 \times 10^{-25} \ J

    The range of the photon energies is between:

    2.652 x 10⁻²⁵ J    to    4.973 x 10⁻²⁵ J

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