Physics
Out of red, blue and violet, which colour has the greatest speed in vacuum ?
- red
- blue
- violet
- all have the same speed
Spectrum
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Answer
all have the same speed
Reason — All electromagnetic waves, including light, travel at the same speed in a vacuum, which is the speed of light denoted by 'c'. Therefore, regardless of their colour, red, blue, and violet light all travel at the same speed in vacuum.
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