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प्रश्न
Explain how sound is produced by your school bell.
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उत्तर
When the school bell vibrates, it forces the adjacent particles in the air to vibrate. This disturbance gives rise to a wave, and when the bell moves forward, it pushes the air in front of it. This creates a region of high pressure known as compression. When the bell moves backwards, it creates a region of low pressure known as rarefaction. As the bell continues to move forward and backward, it produces a series of compressions and reactions. This makes the sound of a bell propagate through the air.
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संबंधित प्रश्न
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Name the physical qantity whose SI unit is 'hertz'.
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(i) The sound of a sitar
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(iii) The sound of a tuning fork
(iv) The buzzing of a bee or mosquito
(v) The sound of a flute
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