Homework Help: physics

Posted by Amelia on Tuesday, May 29, 2012 at 1:04pm.

Electromagnetic radiation having a 12.0 µm wavelength is classified as infrared radiation. What is its frequency?
1 Hz
i got 1.31e+13???

physics - Elena, Tuesday, May 29, 2012 at 5:03pm
f = c/λ = 3•10^8/12•10^-6 =2.5•10^-13 Hz

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