Wave Mechanics Question 1127
Question: Find the fundamental frequency of a closed pipe, if the length of the air column is 42 m. (speed of sound in air = 332 m/sec)
[RPET 2003]
Options:
A) 2 Hz
B) 4 Hz
C) 7 Hz
D) 9 Hz
Show Answer
Answer:
Correct Answer: A
Solution:
For closed pipe $ n=\frac{v}{4l} $
$ \Rightarrow $ $ n=\frac{332}{4\times 42}=2Hz $ .
BETA
