First slide

Intensity of

Question

Two harmonic waves traveling in the same medium have frequency ratio 1 : 2 and intensity ratio 1 : 36. Their amplitude ratio is

Moderate

A

1:3
B

1:6
C

1:8
D

1:72

Solution

$I n t e n s i t y I \infty a^{2} ω^{2} \frac{I_{1}}{I_{2}} = \frac{a_{1}^{2} ω_{1}^{2}}{a_{2}^{2} ω_{2}^{2}} or \frac{1}{36} = \frac{a_{1}^{2}}{a_{2}^{2}} \cdot \frac{1}{4} or \frac{a_{1}}{a_{2}} = \frac{1}{3}$

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