Cobalt-60 is a radioactive isotope used to treat cancers of the brain and other tissues. A gamma ray
emitted by an atom of this isotope has an energy of 8.10 Me\ (million electron volts:
1 eV = 1.601 10-19 J). What is the frequency (in Hz) and the wavelength (in m) of this gamma ray'7
Enter your answers in scientific notation.