ldquo Newton rsquo s disk rdquo when rotated rapidly appears ........

General Science (Easy) Physics

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“Newton’s disk” when rotated rapidly appears :

white

black

as if showing seven colours

None

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Explanation:

white

-r in other words when it is rotated fast the colours blend to form white colours due to persistence of vision. We see white colour in Newton's disc because of the fact that white light is made up of 7 rainbow colours. i.e VIBGYOR. And, a Newton disc have parts of different colours.