Sound WavesHard
Question
Velocity of sound in air is 320 m/s. A pipe closed at one end has length of 1 m. Neglecting end corrections, the air column in the pipe can resonate for sound of frequency
Options
A.240 Hz
B.80 Hz
C.320 Hz
D.400 Hz
Solution
For closed pipe
where n = 1, 3, 5, .........
For n = 1 f1 =
For n = 3 f3 = 3f1 = 240Hz
For n = 3 f3 = 5f1 = 400Hz
∴ Correct options are (a), (b) and (d).
where n = 1, 3, 5, ......... For n = 1 f1 =
For n = 3 f3 = 3f1 = 240Hz
For n = 3 f3 = 5f1 = 400Hz
∴ Correct options are (a), (b) and (d).
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