v = f l for EM waves

  1. The velocity of an EM wave in vacuo is the same as the velocity of light in a vacuum: 3 x 108ms-1

  2. Look in the glossary under spectrum.
  3. Note: the 'e' notation is an alternative version of standard form. (e.g. 1e+6 = 1x106)

    1. 1.000e+8 Hz
    2. 4.290e+10 Hz
    3. 3.000e+14 Hz
    4. 1.000e+15 Hz
    5. 6.000e+16 Hz
    6. 1.760e+7 Hz


  4. Colour Table

    ColourWavelength in metresWavelength in nanometres
    Violet4.249 x 10-7 m424.9 nm
    Indigo4.498 x 10-7 m449.8 nm
    Blue4.747 x 10-7 m474.7 nm
    Green5.254 x 10-7 m525.4 nm
    Yellow5.747 x 10-7 m574.7 nm
    Orange6.250 x 10-7 m625.0 nm
    Red6.993 x 10-7 m699.3 nm