First slide

Standing waves

Question

A pipe, which is closed at one end has a length of 1m. Neglecting end correction, the air column in the pipe can resonate for the sound of frequency velocity of sound in air is 320m/s

Moderate

A

80 Hz
B

240 Hz
C

400 Hz
D

All of these

Solution

Frequency of air column in an one end closed tube,
$f = n . (\frac{v}{4 l}) = n . (\frac{320}{4 x 1}) Hz = 80 n Hz .$
when n = 1, f = 80 Hz, when n = 3, f = 240 Hz, when n = 5, f = 400 Hz,

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App