chemistry

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Cobalt-60 is radioactive isotope used to treat cancers. A gamma ray photon emitted by this isotope has an energy of 2.13 x 10—13 J. What is the wavelength of this gamma ray in SI unit?

  • chemistry -

    E = hc/wavelength.
    This will give you wavelength in m if you plug h and c in with the correct units.

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