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प्रश्न
What is sound ?
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उत्तर
Sound is a form of energy which produces the sensation of hearing.
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संबंधित प्रश्न
Fill in the blank.
The number of times a body vibrates in one second is called its ______.
Why are the waves mentioned by you not audible to us?
Draw a graph between displacement from mean position and time for a body executing free vibrations in vacuum.
Draw displacement-time graph of a wave and show on it the amplitude and time period of wave.
The separation between two consecutive crests in a transverse wave is 100 m. If wave velocity is 20 m s-1, find the frequency of wave.
State three conditions necessary for hearing sound.
The diagram given below shows a displacement distance graph of a wave. If the velocity of wave is 160 ms-1, calculate:
- wavelength
- frequency
- amplitude.
In longitudinal waves, the particle vibrates in a ______ direction of propagation.
