Physics
Grade-8
Easy

Question

Sound cannot travel in space because sound cannot travel through _______.

  1. Earth
  2. Moon
  3. Star
  4. Vacuum

hintHint:

Sound is a mechanical wave.

The correct answer is: Vacuum


    • Sound waves are mechanical waves.
    • They need a material medium for propagation.
    • Like- solids, liquids and gases.
    • Therefore, sounds cannot travel through vacuum because of the absence of particle matter.
    • So, the correct option is d.

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