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Calculating the Frequency of Wavelengths
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| Wavelength- The distance between successive crest or trough
in a wave |
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| Frequency- The number of complete waves passing a point in a
given amount of time |
s-1 or 1 per second or 1/s and is now called a hertz |
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| Amplitude- The maximum height of a wave, as measured from the
axis of propagation |
Nodes- Points of zero amplitude |
| Calculating Wave Length |
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| Wavelength (m) X Frequency (s-1) = velocity (m/s) |
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| C = 2.99792458 X 108 m/s -1 |
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| Example Question |
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| The frequency of the radiation used in all microwave ovens sold in
the US is 2.45 GHz. (109 s-1) What is the wavelength
(in meters) of this radiation? |
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| Answer |
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| 2.998 x 108 ms-1 / 2.45 X 109 s-1
= .122 m |
Note The s-1 cancel each other out |
