In Young’s double slit experiment, the interference pattern is found to have an intensity ratio between the bright and dark fringes as 9 . This implies that
(a) the intensities at the screen due to the two slits are 5 units and 4 units respectivel
(b) the intensities at the screen due to the two slits are 4 units and 1 units respectively.
(c) the amplitude ratio is 3
(d) the amplitude ratio is 2
