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.

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