The speed of sound in air is-The speed of sound in air is-

1.	The speed of sound in air is-The speed of sound in air is-
Answer» $\huge\blue{\mid{\fbox{\tt(answer)}\mid}}$ about 343 metres PER second The speed of sound is the distance travelled per unit of TIME by a sound WAVE as it propagates through an elastic medium. At 20 °C (68 °F), the speed of sound in air is about 343 metres per second (1,235 km/h; 1,125 ft/s; 767 mph; 667 KN), or a kilometre in 2.9 s or a mile in 4.7 s.

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