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A sound wave that has a wavelength of 2 m in room-temperature air has a frequency of about

A. 170 Hz.
B. 1360 Hz.
C. 2040 Hz.
D. none of the above

1 Answer

3 votes

The speed of sound in normal room air is about 340 meters/sec.

Frequency = (speed) / (wavelength) .

= (340 m/s) / (2 m) = 170 /sec = 170 Hz .

User Konrad Winkowski
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