Same chapter2 marksDifficulty: Easy
What kind of wave is sound and why can it not travel through a vacuum?
Sound
2 marksDifficulty: Easy
Why can sound not travel through a vacuum?
Original Khojo Papers practice question — not from a past board paper.
Answer
Sound is a mechanical wave and needs a material medium whose particles can vibrate and pass the disturbance on. A vacuum contains no particles, so there is nothing to carry the vibration.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
This is demonstrated by the bell-in-a-jar experiment.
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