wave_mechanics organ_pipe_vibration_of_air_column Question 27
Question: What is minimum length of a tube, open at both ends, that resonates with tuning fork of frequency 350 Hz ?
[velocity of sound in air = 350 m/s] [DPMT 2004]
Options:
A) 50 cm
B) 100 cm
C) 75 cm
D) 25 cm
Show Answer
Answer:
Correct Answer: A
Solution:
Fundamental frequency $ n=\frac{v}{2l} $
$ \Rightarrow 350=\frac{350}{2L} $
$ \Rightarrow L=\frac{1}{2}m=50cm.
$
BETA
