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Question

Light can travel in vacuum but sound cannot because

A
speed of sound is very smaller than speed of light
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B
light waves are electromagnetic in nature
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C
sound waves are electromagnetic in nature
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D
speed of light is very high
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Solution

The correct option is B light waves are electromagnetic in nature
Light is an electromagnetic wave, hence it does not require a medium to propagate. On the other hand sound wave is a mechanical wave and requires a medium to propagate.

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