So this means that we can go directly from the energy between two levels to the frequency of the photon that's emitted when you go between those levels.
They emitted so much radio-frequency interference that Mr. Clark struggled to get a clear signal for the band's wireless instruments and in-ear monitors.
Agarwal is in the early stages of further research that can model the human body's role in protecting from radio-frequency electromagnetic waves emitted from cell phones.