Question

White light is used in young's double spit experiment. Separation between slit is y

Answer 1

Answer:

sorry to say but I didn't know the answer to tell you

Answer 2

Answer:

So if monochromatic light in Young's double-slit experiment is replaced by white light, then the waves of every wavelength form their separate interference patterns. ... Hence the waves of all colors reach a middle point R in the same phase. So the central fringe is white.