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Question
What is Newton’s disc?
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Solution
Newton Disc is a cardboard disc with seven equal sectors colored red, yellow, orange, green, blue, indigo, and violet. When the disc is turned quickly, the retina receives the sensation of the spectrum simultaneously and the disc appears white.
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RELATED QUESTIONS
A student traces the path of a ray of light through a triangular glass prism for different values of angle of incidence. On analyzing the ray diagrams, which one of the following conclusions is he likely to draw?
(A) The emergent ray is parallel to the incident ray.
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- which colour is deviated most?
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