alleryAt sea level, sound travels through air at roughly how many metres each second?
A34 m/s
B340 m/s
C3400 m/s
D34000 m/s
Answer & Solution
Correct answer: B. 340 m/s
1. Sound speed in air depends on temperature.
2. At sea level it is 340 metres per second.
3. In the cold stratosphere it drops to about 290 metres per second.
_Source: Wikipedia, Atmosphere of Earth, Speed of sound_
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