The fringe pattern observed on Young's double-slit experiment is

Contrast of the fringe pattern obtained in Young's double-slit experiment depends on

What happens to the fringe pattern when the Young's double slit experiment is performed in water intesed of air ?

Statement-1 : In Young’s experiment, the fringe width for dark fringes is same as that for white fringes. Statement-2 : In Young’s double slit experiment performed with a source of white light, only black and bright fringes are observed.