In a Young double slit experiment, the two slits are named as A and B. Two transparent films of thickness `t_(1) "and" t_(2)` having refractive indices `mu_(1)" and" mu_(2)` placed in front of the slits A and B respectively. It is given that `mu_(1) t_(1) = mu_(2) t_(2)" and" t_(1) lt t_(2)`
In which direction will the central maximum shift after the two films are placed?
