WBCS.LIVE practice question

Sound travels fastest in which of the following?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Air
  2. Water
  3. Steel
  4. Vacuum

Correct answer and explanation

Correct answer: Steel

Explanation: āœ… Correct Answer: (C) Steel šŸ“š Explanation: Sound is a mechanical wave that requires a medium to travel. It travels fastest in solids because the particles in solids are packed closely together, allowing for quicker transmission of vibrations. Steel is a dense solid, so sound travels much faster in it (approx. 5,960 m/s) than in water (approx. 1,480 m/s) or air (approx. 343 m/s). Sound cannot travel through a vacuum at all.