In a pipe open at two ends a diatomic gas is oscillating in 1st harmonic. The length of the tube is m and the maximum pressure variation is The maximum displacement of gas particles which are a distance of from one end is The value of x is (Take 1atm= Pa)
Open end pipe has pressure Node and displacement Antinode, so, let open end be x=0, then
particle displacement amplitude will be
For sound wave in a gas, (adiabatic process)
So,
Diatomic gas,
1st harmonic, or
We get,
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An organ pipe P1 closed at one end vibrating in its first overtone and another pipe P2 open at the both ends vibrating in its third overtone are in resonance with a given tuning fork. The ratio of the length of P1 to that of P2 is then n = ?
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