First slide

Experiments to find speed of sound

Question

A tuning fork of 512Hz is used to produce resonance in a resonance tube experiment. The level of water at first resonance is 30.7 cm and at second resonance is 63.2 cm. The error in calculating velocity of sound is (speed of sound in air = 330 m/s).

Easy

A

204.1 cm/s
B

110 cm/s
C

58 cm/s
D

280 cm/s

Solution

$V = 2 n (l_{2} - l_{1})$
$V = \frac{2 \times 512 (63 .2 - 30 .7)}{100}$
$= 332 .8 m / s$
$Error, \frac{ΔV}{V} = \frac{{Δl}_{2} + {Δl}_{1}}{l_{2} - l_{1}} = \frac{0 .2}{32 .5}$
$ΔV = 332 .8 \times \frac{0 .2}{32 .5} = 204 cm / s$

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