Which of the following statements is correct regarding the propagation of light of different colors of white light in air?
Red light moves fastest
All the colours of the white light move with the same speed
Blue light moves faster than green light
Yellow light moves with the mean speed as that of the red and the violet light
A
Yellow light moves with the mean speed as that of the red and the violet light
B
Red light moves fastest
C
Blue light moves faster than green light
D
All the colours of the white light move with the same speed
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Solution
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Air is not a dispersive medium and hence the light of all wavelengths travel with equal velocity.
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