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Sound travels fastest in

  1. A
    Air
  2. B
    Water
  3. C
    Vacuum
  4. D
    Steel

Solution & Step-by-step Explanation

Sound is a mechanical wave and requires a medium to travel. Its speed depends on the elasticity and density of the medium through which it propagates. Sound travels fastest in solids due to high elasticity, slower in liquids, and slowest in gases. It cannot travel through a vacuum at all. Among the options given, steel is a solid, so sound travels fastest in it.

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Sound travels fastest in
A
Air
B
Water
C
Vacuum
D
Steel

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