Question

what is neautons disc?

Answer 1

Newton's disc is a disc with segments in painted in rainbow colours, i.e. violet, indigo, blue, green, yellow, orange and red, in that order. When the disc is rotated, the colors fade to white;  Isaac Newton used this disc to demonstrate that white light is a combination of the seven different colours found in a rainbow.

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Answer 2

A Newton disc, invented by IsaacNewton, is a disc with segments in rainbow colours. When the disc is rotated, the colors fade to white; In this way Isaac Newton demonstrated that white light is a combination of the seven different colours found in a rainbow.