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  4. Ratio of intensity of two waves is 25:1. If interference occurs, then ratio of maximum and minimum intensity should be :-

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Q. Ratio of intensity of two waves is $25:1.$ If interference occurs, then ratio of maximum and minimum intensity should be :-

NTA AbhyasNTA Abhyas 2020

Solution:

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