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Wavelength = (speed) divided by (frequency).

Speed of light = 3 x 108 meters per sec = 3 x 1017 nanometers per sec.

Wavelength = (3 x 1017) / (7.1 x 104) = 0.4225 x 1013 = 4.225 x 1012 nm

Same as 4.225 kilometers = about 2.6 miles !

The signal in the transmitting antenna was 71 KHz ... an unusually low frequency for radio communication.
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14y ago
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14y ago

The wavelength is w= c/f = 3E9/2.1E14 = 1.42E-6 meters.

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Q: What is the wavelength of a photon that has a frequency of 2.10 x 1014 Hz. Answer in nm?
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