MCQ
Velocity of sound in air is 332m/s. Its velocity in vacuum will be:
- A> 332m/s
- B= 332 m/s
- C< 332m/s
- ✓Meaningless.
✓
Answer
Correct option: D.
Meaningless.
Sound wave is a mechanical wave; this means that it needs a medium to travel. Thus, its velocity in vacuum is meaningless.
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