Same chapter2 marksDifficulty: Easy
Why can sound not travel through a vacuum?
Sound
2 marksDifficulty: Easy
What kind of wave is sound and why can it not travel through a vacuum?
Original Khojo Papers practice question — not from a past board paper.
Answer
Sound is a longitudinal mechanical wave, in which the particles of the medium vibrate along the direction in which the wave travels. It needs particles to pass the vibration on, and a vacuum has none, so sound cannot travel through it.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The bell-in-a-jar experiment demonstrates this.
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