First slide

Superposition of waves

Question

Two waves having the intensities in the ratio of 9 : 1 produce interference. The ratio of maximum to the minimum intensity, is equal to

Moderate

A

2 : 1
B

4 : 1
C

9 : 1
D

10 : 8

Solution

$\frac{I_{\max}}{I_{\min}} = \frac{{(\frac{\sqrt{I_{1}}}{\sqrt{I_{2}}} + 1)}^{2}}{{(\frac{\sqrt{I_{1}}}{\sqrt{I_{2}}} - 1)}^{2}} = \frac{{(\sqrt{\frac{9}{1}} + 1)}^{2}}{{(\sqrt{\frac{9}{1}} - 1)}^{2}} = \frac{4}{1}$

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