tick the correct option i) the approximate speed of sound in air at room temperature is
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The term is commonly used to refer specifically to the speed of sound in air. At sea level, at a temperature of 21 degrees Celsius (70 degrees Fahrenheit) and under normal atmospheric conditions, the speed of sound is 344 m/s (1238 km/h or 770 mph).
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21 degrees celcius To 70 fahrenhiet
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