What is the wavelength of a photon with an energy of 4.56 *10^-19 J

Question

What is the wavelength of a photon with an energy of 4.56 *10^-19 J

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Khánh Gia 2 weeks 2021-08-31T12:14:01+00:00 2 Answers 0 views 0

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    0
    2021-08-31T12:15:21+00:00

    Answer: It’s 6.88 * 10 ^14

    Explanation: this is the right answer for a pex

    0
    2021-08-31T12:15:23+00:00

    Answer:

    462nm

    Explanation:

    E=hf

    c=fλ

    E=hc/λ

    The relation between the wavelength λ of a photon and its energy E is following: E=hc/λ where h = 6.626×10⁻³⁴ J⋅s is Planck’s constant, c = 3×10⁸ m/s is the speed of light. If E = 4.56×10^⁻¹⁹ J then λ = 463nm(nano meter)

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