A) Frequency
B) Intensity
C) Amplitude
D) Wavelength
Correct Answer: D
Solution :
The wavelength of sound changes with temperature. This is because the speed of sound changes with the temperature. Since the speed of sound is different at different temperature, this means the wavelength of sound at a given frequency is a variable depending on the speed of sound. For example, the wavelength of a 100 cycle tone in air at 68°F would be 11.27 feet while the same tone in fresh water at 68°F would have a wavelength of 48.05 feet.
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