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Wavelength vs Frequency
The relationshipt between Wavelength and Frequency is determined by simple equation that you learned in high school physics.
Wavelength = Velocity / Frequency
This equation says i) When frequency is same, Wavelength gets longer as Velocity gets higher in vice versa. ii) When Velocity is same, Wavelength gets shorter as Frequency gets higher in vice versa If we assume that the velocity of electromagnetic wave is same as the speed of light which is 3 x 10^8 m/s. Wavelength for some typical application can be calculated as follows.
If the electronic wave travel through special type of media (not free space), the velocity would change. According to the equation shown above, the wavelength would change as the velocity changes. A common example is the case when the wave travel through a dielectrics. (See Dielectric page if you are not familiar with what it is and how it influence the velocity of electromagnetic wave)
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