Multiple choice

Speed of sound is greater in solids than in liquids because

  1. the atoms in solids are regularly arranged

  2. the atoms in solids are loosely packed

  3. the solids have high elasticity

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sound waves require a medium to travel. The speed of sound depends on the medium's elasticity and density; solids have much higher elastic moduli than liquids, which allows sound waves to propagate faster.

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