Question

what is a Newton colour disc

Answer 1

here is your answer The Newton disc is a well-known physics experiment with a rotating discwith segments in different colors(usually Newton's primary colors: red, orange, yellow, green, blue, indigo, and violet) appearing as white (or off-white or gray) when it spins very fast.

Answer 2

Newton colour disk consists of 7 colour I.. e.. Rainbow colours. If rotate the disc with equal sector of each of the above colour, it will give you a appearance of white colour. This proves that when white colour splits it gives out 7 colour, rainbow colors.