The wavelength will double.
Since the speed of the wave is constant and given by the equation speed = frequency x wavelength, if the frequency is halved, the wavelength must double in order to keep the speed constant.
If a wave is traveling at a constant speed and the frequency is changed from 4 Hz to 2 Hz, how will the wavelength change?
The wavelength would produce a standing wave.
The wavelength will be halved.
The wavelength will remain unchanged.
The wavelength will double.
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