JEE Main 2022 · 27 Jul · Shift 1, Physics question 53

Two beams of light having intensities I and 4I interfere to produce a fringe pattern on a screen. The phase difference between the two beams are $\pi/2$ and $\pi/3$ at points A and B respectively. The difference between the resultant intensities at the two points is $xI$. The value of $x$ will be ______.