The shortest length of the air column in a resonance tube...
The shortest length of the air column in a resonance tube at resonance is 0.12m and the next resonance length is 0.37m. Calculate the frequency of vibration given that the speed of sound in air is 340m-1
1360Hz
694Hz
680Hz
34Hz
340Hz
Correct answer is C
f = \(\frac{v}{2(l_2 - l_1)} = \frac{340}{2(0.37 - 0.12)} = \frac{34}{0.5}\) = 680
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