Question:
The light waves from two coherent sources have same intensity $\mathrm{I}_{1}=\mathrm{I}_{2}=\mathrm{I}_{0}$. In interference pattern the intensity of light at minima is zero. What will be the intensity of light at maxima ?
Correct Option: , 4
Solution:
$\mathrm{I}_{\max }=\left(\sqrt{\mathrm{I}_{1}}+\sqrt{\mathrm{I}_{2}}\right)^{2}$
$=4 \mathrm{I}_{0}$