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24-01-2016
Physics

Answered

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

A170 Hz.
B1360 Hz.
C2040 Hz.
Dnone of the above

Verified Answer :

24-01-2016

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 .

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