Mark the incorrect statement

 In Young’s experiment, if white light is used instead of monochromatic light, then the central bright fringe is white

In Young’s experiment fringe width of dark as well as bright fringes are same

Light waves do not show the phenomenon of diffraction since we can hear a person who is standing behind a wall but cannot see him

In Young’s double slit experiment the fringes become indistinct if one of the slits is covered with transparent paper