- Sound needs a medium to travel. - Speed of sound increases with the density and elasticity of the medium. - Sound travels fastest in solids, then liquids, then gases. - Steel is a solid, air is a gas, sand is a solid (granular). - Steel is denser and more rigid than air or sand, leading to faster sound travel.
Sound travels fastest through:
Asked in APPSC Draughtman 2008 · Topic: Sound (Speed of Sound in Different Media and Factors Affecting It)
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