A sound wave has a speed of 200 m/s in a medium and it travels a distance of 1 m. What is the time taken by the wave to cross the medium

50 ms

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100 ms

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10 ms

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5 ms

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Solution

The correct option is D 5 ms
We know that wave velocity = distance/Time taken
$200 = 1 / t ⟹ t = 1 / 200 = 0.005 s$
The correct option is (d)

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