Speed of Sound in Air
The speed of sound varies depending on the medium and its conditions, primarily temperature.
For dry air at a standard temperature of 20°C (68°F) and standard atmospheric pressure, the speed of sound is approximately 343 meters per second.
This value is a widely accepted standard in physics.
Therefore, the correct option is 343 m/sec.
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Important Questions from Physics
Two balls, A and B, are thrown simultaneously, a vertically upward with a speed of 20 m/s from the ground and B vertically downward from a height of 40 m with the same speed and along the same line of motion. At what points do the two balls collide by taking acceleration due to gravity as 9.8 m/s 2?
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Which one of the following devices is used to measure atmospheric pressure?
Which one of the following energy is stored in the links between the atoms?
Who among the following has explained the phenomenon of photoelectric effect?
