How long are infrared waves compared with waves of visible light?

1 Answer
Feb 3, 2016

Answer:

Infra red ranges from the upper end of the wavelength of visible light up to #1400# times that.

Explanation:

The wavelength of visible light ranges from #400#nm up to #700#nm.

The wavelength of infra red ranges from #700#nm (#7xx10^-7#m) all of the way up to #1#mm (#1xx10^-3#m).

So the range of visible light is about one octave while that of infra red is over ten octaves.