Discussion of this information audio mp3
The following figure shows the Electromagnetic spectrum.
Calculating the Frequency of Wavelengths
The distance between successive crest or trough in a wave.
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 called a hertz. The following figure is an illustration of wavelength and frequency.
Amplitude: The maximum height of a wave, as measured from the axis of propagation.
Nodes: Points of zero amplitude.
Calculating Wave Length
Wavelength (m) X Frequency (s-1
) = velocity (m/s)
C = 2.99792458 X 108 m/s -1
The frequency of the radiation used in all microwave ovens sold in
the US is 2.45 GHz. (109
) What is the wavelength
(in meters) of this radiation?
2.998 x 108 ms-1 / 2.45 X 109 s-1 = .122 m
The s-1 cancel each other out