In a Young's double slit experiment, the intensity at some point on the screen is found to be 3/4 times of the maximum of the interference pattern.…

In a Young's double slit experiment, the intensity at some point on the screen is found to be $\displaystyle \frac{3}{4}$ times of the maximum of the interference pattern. The path difference between the interfering waves at this point is $\displaystyle \frac{\lambda}{x}$ where $\displaystyle \lambda$ is wavelength of the incident light. The value of $\displaystyle x$ is $\displaystyle \_\_\_\_$.