In the Young's double slit experiment, if the phase difference between the two waves interfering at a point is $\varphi$, the intensity at that point can be expressed by the expression

Q. If intensity of each wave in the observed interface pattern is Young's double slit experiment is $I_0$. then for some point $P$ where the phase difference is $\varphi$ intensity $I$ will be

Q. If intensity of each wave in the observed interference pattern in Young's double slit experiment is $I_0$, then for some point P where the phase difference is $\varphi$, resultant intensity $I$ will be:

Q. In Young's double slit experiment, the constant phase difference between two sources is $\frac{\pi }{2}$. The intensity at a point equidistant from the slits in terms of maximum intensity $I_{\circ }$ is :

Q. In Young's double slit experiment, the path difference between two interfering waves at a point on screen is $13.5$ times the wavelength. The point is:

Q. In the Young's double slit experiment, the resultant intensity at a point on the screen is $75\%$ of the maximum intensity of the bright fringe. The phase difference between the two interfering rays at that point is: