A Newton's disc is a disc with segments in rainbow colors. When the disc is rotated, the colors fade to white. In this way, Issac Newton demonstrated that white light is a combination of seven colors found in a rainbow. This is due to the phenomenon of persistence of vision.
Asmita Chatterjee THANKS A LOT.I THINK THIS CLEARS MY DOUBTS.
Upvote·0· Reply ·2013-09-30 22:26:28jinia pal welcome...:D