# The radioactive isotope co−60 is used in nuclear medicine to treat certain types of cancer. calculate the wavelength and frequency of an emitted gamma photon having the energy of 1.29 × 1011 j/mol.

###### Question:

the radioactive isotope co−60 is used in nuclear medicine to treat certain types of cancer. calculate the wavelength and frequency of an emitted gamma photon having the energy of 1.29 × 1011 j/mol.

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