Light of different colors propagates through vaccum with
A
With the velocity of
air
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B
Having the equal
velocities
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C
With the velocity of
sound
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D
With different
velocities
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Solution
The correct option is B
Having the equal
velocities
In vacuum, the speed of light is independent of wave length. Thus vacuum (or air) is a non dispersive medium in which all colors travel with the same speed.