First slide

Stationary waves

Question

An air column in a pipe, which is closed at one end, will be in resonance with a vibrating body of frequency 166 Hz, if the length of the air column is

Easy

A

2.00 m
B

1.50 m
C

1.00 m
D

0.50 m

Solution

For closed pipe $n_{1} = \frac{v}{4 l} \Rightarrow l = \frac{v}{4 n} = \frac{332}{4 \times 166} = 0 .5 m$

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