The threshold frequency for dislodging an electron from a zinc metal surface is 8.54 x 1014 Hz. Calculate the minimum amount of energy requi

Question

The threshold frequency for dislodging an electron from a zinc metal surface is 8.54 x 1014 Hz. Calculate the minimum amount of energy required to remove an electron from the metal.

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Thanh Hà 6 months 2021-09-05T00:29:13+00:00 1 Answers 0 views 0

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  1. thongdat2
    0
    2021-09-05T00:30:43+00:00
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    Answer:

    Explanation:

    frequency of radiation

    = 8.54 x 10¹⁴

    wave length =  3 x 10⁸ / 8.54 x 10¹⁴

    = .3513 x 10⁻⁶ m

    = 3513 A

    Energy of this wave OR energy of each photon  in eV

    = 12375 / 3513

    = 3.52 eV

    the minimum amount of energy required = 3.52 eV.

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