The speed of sound in air at 0°C is 320ms.Calculate the speed of sound when the temperature of the air is 30°C
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Answer:
The resonant frequency for the closed pipe is given by
ν=(2n+1)
4l
v
For n=0, the fundamental resonant frequency(minimum allowed frequency) ν
0
is ν
0
=
4l
v
where, v is the speed of sound in air and l is the length of closed pipe.
Therefore,
nu
0
=
4(1)
320
nu
0
=80Hz
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