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anonymous

  • one year ago

What is the energy of a single photon of visible light with a wavelength of 500.0 nm? 1 nm=10^-9 m

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  1. anonymous
    • one year ago
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    A. 2.02 * 10^18 J B. 2.84 * 10^14 J C. 3.97 * 10^-19 J D. 4.95 * 10^-19 J

  2. rvc
    • one year ago
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    E = h N h : plancks constant N : 500 nm

  3. Michele_Laino
    • one year ago
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    I think that the requested energy E is: \[\large E = \frac{{hc}}{\lambda } = \frac{{6.62 \times {{10}^{ - 34}} \times 3 \times {{10}^8}}}{{500 \times {{10}^{ - 9}}}} = ...joules\]

  4. rvc
    • one year ago
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    as usual i mess the formula lol

  5. anonymous
    • one year ago
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    ok! we get 3.972 E -19! so choice C is our solution!! thanks!!:)

  6. Michele_Laino
    • one year ago
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    yes! correct!

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