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प्रश्न
What is approximate value of the speed of sound in iron as compared to that in air? Illustrate your answer with a simple experiment.
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उत्तर
Speed of sound in iron is approximately sixteen times the speed of sound in air.
[Speed of sound in iron = 5100 ms-1; Speed of sound in air=332 ms-1]
Experiment: If we put our ears to rails, we can hear the sound of the train through metal. But at the same time, when we stand near by the railway track, we are not able to hear the sound.
This occurs because when we put our ears to rails, the sound travels through iron. But in standing position, sound travels through air, and due to smaller speed of sound in air as compared to iron, we are not able to hear the sound.
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संबंधित प्रश्न
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Sound can only be produced by vibrating bodies.
What do you mean by a vibratory motion?
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(i) in the same direction as wave.
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Describe a simple experiment to determine the speed of sound in air. What approximation is made in the method described by you?
A medium is necessary for ______ of sound.
A continuous progressive transverse wave of frequency 8 Hz moves across the surface of a ripple tank
With reference to the frequency, describe the movement of water on the surface
