Two coherent light sources having intensity in the ratio of 2x produce an interference pattern.
The ratio \(\frac{I_{max}-I_{min}}{I_{max}+I_{min}}\) will be :
1
\(\frac{\sqrt{2x}}{2x+1}\)
2
\(\frac{2\sqrt{2x}}{2x+1}\)
3
\(\frac{\sqrt{2x}}{x+1}\)
4
\(\frac{2\sqrt{2x}}{x+1}\)