What is the speed of sound in air at $0 °$ :

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$1450 m / s$

$450 m / s$

$5100 m / s$

$330 m / s$

answer is D.

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Detailed Solution

A sound wave's speed is defined as the net distance travelled per unit time. Apply the sound velocity in air formula.

The speed of sound varies depending on the temperature, humidity, and even the quality of the air. At 0 degrees Celsius, the speed of sound is approximately 331.5 m/s. For every degree Celsius increase in temperature, the speed of sound increases by 0.6 metres per second (m/s).

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