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What does RF determine?
A. cycle pattern size
B. howoften a wave occurs
C. signal size
D. quantity of energy injected in a signal
Correct Answer: B
Explanation/Reference:
Explanation:
RF communication works by creating electromagnetic waves at a source and being able to pick up those electromagnetic waves at a particular destination. These electromagnetic waves travel through the air at near the speed of light. The wavelength of an electromagnetic signal is inversely proportional to the frequency; the higher the frequency, the shorter the wavelength.
http://www.digi.com/technology/rf-articles/rf-basic