Jul 20, 2022, 16:45 IST
This page consists of detail step by step explanation of each and every question which is given in HC Verma physics, in the chapter Introduction of physics which is 16st chapter of HC Verma concept of physics in Volume -1 all questions are solved with proper explanation of all steps to enhance your learning. You must solve NCERT text Book solutions of class 11 Physics with HC Verma , for reference you can check out NCERT solutions for class 11 Physics.
Sound is produced in a material medium by a vibrating source. As the vibrating source moves forward, it compresses the medium past it, increasing the density locally. This part of the medium compresses the layer next to it by collisions. The compression travels in the medium at a speed which depends on the -elastic and inertia properties of the medium. As the source moves back, it drags the medium and produces a rarefaction in the layer. The layer next to it is than dragged back and thus the rarefaction pulse passes forward. In this way, compression and rarefaction pulses are produced which travel in the medium.