Chemistry

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Cobalt-60 is a radioactive isotope used to treat cancers. A gamma ray emitted by this isotope has an energy of 1.33 MeV (million electron volts; 1 eV = 1.602 multiplied by 10-19 J). What is the frequency (in Hz) and the wavelength (in m) of this gamma ray?

  • Chemistry -

    Convert 1.33 MeV to J, then
    E = hc/wavelength to find wavelength and
    c = frequency*wavelength to find frequency.

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