In a Young's double slit experiment set up, sources of wavelength 500nm illuminates two slits S, and S, which act as two coherent sources. The source S oscillates about its own position according to the equation y = 0.5 sin where y is in mm and t in seconds. The minimum value of time t for which the intensity at point P on the screen exactly infront of the upper slit becomes minimum is %3D PAY 1mm <-1m 2m

In a Young's double slit experiment set up, sources of wavelength 500nm illuminates two slits S, and S, which act as two coherent sources. The source S oscillates about its own position according to the equation y = 0.5 sin where y is in mm and t in seconds. The minimum value of time t for which the intensity at point P on the screen exactly infront of the upper slit becomes minimum is %3D PAY 1mm <-1m 2m