Calculate the energy of light having a wavelength of 395 nm. show work

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Calculate the energy of light having a wavelength of 395 nm.
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Bơ 3 years 2021-08-14T09:10:24+00:00 1 Answers 7 views 0

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  1. dangkhoa
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    2021-08-14T09:12:22+00:00
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    Answer: 5.032\times 10^{-19}\ J

    Explanation:

    Given

    The wavelength of the light is \lambda =395\ nm

    Energy associated with a photon(light) is given by E=\frac{hc}{\lambda}

    where, h=\text{Planck constant}

    c=\text{speed of light}

    \Rightarrow E=\dfrac{6.626\times 10^{-34}\times 3\times 10^8}{395\times 10^{-9}}\\\\\Rightarrow E=5.032\times 10^{-19}\ J

    Therefore, the energy associated with the light is 5.032\times 10^{-19}\ J

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