Multiple choice

In which of the following is the speed of the sound highest?

  1. Steel

  2. Hydrogen

  3. Water

  4. Empty
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sound travels fastest in solids (steel) because particles are closely packed and can transmit vibrations more efficiently than in liquids (water) or gases (hydrogen). Sound cannot travel in empty space (vacuum) as it requires a medium for propagation.

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