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  • The interference pattern is obtained with two coherent light sources of intensity ratio 4. In the interference pattern, ratio <img alt="\frac{I_{max}-I_{min}}{I_{max}}" src="https://entrancecorner.

The interference pattern is obtained with two coherent light sources of intensity ratio 4. In the interference pattern, ratio \frac{I_{max}-I_{min}}{I_{max}} will be

Option: 1

4 : 3

 


Option: 2

1 : 9


Option: 3

8 : 9


Option: 4

5 : 4


Answers (1)

best_answer

Answer (3)

I_{max}=\left ( \sqrt{I}+\sqrt{4I} \right )^{2}

           =9I

I_{min}=\left ( \sqrt{4I}-\sqrt{I} \right )^{2}

         =I

\frac{I_{max}-I_{min}}{I_{max}}=\frac{9I-I}{9I}

                        =\frac{8}{9}

Posted by

Rishabh

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