Physics
Grade-8
Easy
Question
Sound cannot travel through _________.
- Air
- Water
- Solid
- Vacuum
Hint:
Sound waves are mechanical waves.
The correct answer is: Vacuum
- Sound waves are mechanical waves.
- They need a material medium for propagation.
- Like - solids, liquids and gases.
- They can't travel through vacuum beacause of the absence of particle matter..
- So, the correct option is d.
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