PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
Explain how sound is produced by your school bell.
 
When the school bell rings, the adjacent particles in air are  simultaneously. This disturbance leads to the formation of a sound wave and when the bell moves forward, it . This forms a region of  known as compression. When the bell moves backwards, a region of  known as rarefaction is created.
 
In this way the bell continues to move forward and backward which produces a series of compressions and rarefactions. This leads to the sound of a bell when it propagates through air.