In which medium does the sound travel the fastest at a particular temperature?

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Air

Water

Iron

Ice

answer is C.

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Detailed Solution

Sound travels fastest in iron at room temperature.
Sound travels faster in iron i.e. solid than in any other medium. Molecules in a solid material are very much closer than in any other material so the density of solid material is highest. As the density of a solid is the highest so the velocity of sound is also the highest in any solid material. That’s why sound travels faster in solid than air and water. Because iron is a solid material so sound travels faster in it than air, water and ice.

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