Question

Make Newton’s disc by painting the constituent colours of white col-our of white light in the same order and proportion.
In which colour does the disc appear when rotated fast?

Answer 1

Very near to the white colour. The Newton disc, also known as the Disappearing Colour Disc, is a well-known physics experiment with a rotating disc with 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.