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  4. The light waves from two coherent sources have same intensity I 1= I 2= I 0. In interference pattern the intensity of light at minima is zero. What will be the intensity of light at maxima ?

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Q. The light waves from two coherent sources have same intensity $I _{1}= I _{2}= I _{0}$. In interference pattern the intensity of light at minima is zero. What will be the intensity of light at maxima ?

JEE MainJEE Main 2021Wave Optics

Solution:

$ I _{\max } =\left(\sqrt{ I _{1}}+\sqrt{ I _{2}}\right)^{2}$
$=4 I _{ o } $