Luis2000 Luis2000
  • 24-03-2015
  • Mathematics
contestada

The speed of light is 3.0*10^8 m/s. Red light has a wavelength of 7 *10^-7 m. What is its frequency?

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Hippalectryon
Hippalectryon Hippalectryon
  • 24-03-2015
Frequency : f=c/lambda=3.0e8/7e-7=3/7*10^15 Hz~4.3*10^14 Hz=430THz
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