Electromagnetic waves travel at the speed of light (29,979,245,800 centimeters
per second) and their frequency and wavelength can be determined by the formulas:

where 'c' is the speed of light in centimeters per second, the Greek letter lambda
l is the wavelength
in centimeters and the frequency is in cycles per second.

Also, the photon energy can be calculated by the formulas:

where 'e' is energy (ergs), 'f' is frequency (cycles per second), 'h' is Planck's
constant (4.13566 x 10^{-15} electron volts/second) and wavelength
l
is in centimeters.

As always, we have written a calculator to make the work a little easier for you.