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Question
Which colour of light travels fastest in any medium except air?
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Solution
Red colour travels the fastest as its wavelength is the highest.
RELATED QUESTIONS
A student traces the path of a ray of light passing through a rectangular glass slab and marks the angle of incidence i, angle of refraction r and angle of emergence e, as shown.
The correctly marked angle(s) is/are
(A) ∠ i only
(B) ∠ e only
(C) ∠ r only
(D) ∠ i and ∠ e
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4) What are the rays AB and CD in the figure called?
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