MCQ practice · SSC Physics Board questions · Chapter 7: Waves and Sound
In which of the following media is the speed of sound highest?
Think it through first, then pick an option.
- a plasma
- b gas
- c liquid
- d solid
Answer and explanation
Correct answer: d solid
Sound is fastest in a solid, for example 5130 m/s in iron.
Why the other options are wrong
- a plasma: Plasma is an ionised gas; sound there is far slower than in a solid.
- b gas: In a gas the speed is lowest; about 330 m/s in air.
- c liquid: In a liquid the speed is above a gas but below a solid; 1493 m/s in water against 5130 m/s in iron.
More board questions on this topic
- In which medium is the speed of sound highest?
- In which of the following media does sound travel fast?
- The speed of sound in air is inversely proportional to the square…
- The speed of sound in air:
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