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Which colour of white light travels fastest in any medium except air?

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Question

Which colour of white light travels fastest in any medium except air?

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Solution

All media except air allow red light to travel at the fastest speed.

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Chapter 4: Refraction of Light at Plane Surfaces - EXERCISE - 4 (A) [Page 81]

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Selina Concise Physics [English] Class 10 ICSE
Chapter 4 Refraction of Light at Plane Surfaces
EXERCISE - 4 (A) | Q 16. (b) | Page 81

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