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abhinavjeet
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In a longitudinal wave is a compression pulse always followed by a rarefaction on its tail
It is possible to have just one direction of pulse but then the whole system has moved forward statically. For electrical transmission lines we have created a DC component. A balanced system of pulses (maybe 3 for instance) has no residual DC component. This would be obtained if the transmission line is driven via a DC blocking capacitor.abhinavjeet said:In a longitudinal wave is a compression pulse always followed by a rarefaction on its tail
Longitudinal waves are a type of mechanical wave that cause particles in a medium to vibrate parallel to the direction of the wave's propagation. Examples of longitudinal waves include sound waves and seismic waves.
Compression refers to the area of a longitudinal wave where particles are tightly packed together, resulting in a high density. This is caused by the particles being pushed together by the energy of the wave.
Rarefaction is the opposite of compression, and refers to the area of a longitudinal wave where particles are spread out, resulting in a low density. This is caused by the particles being pulled apart by the energy of the wave.
Longitudinal waves travel by transferring energy from one particle to the next. As one particle vibrates, it transfers its energy to the next particle, causing it to vibrate in the same direction. This process continues, allowing the wave to travel through the medium.
Some common examples of longitudinal waves include sound waves, which travel through air, and seismic waves, which travel through the Earth's crust during earthquakes. Other examples include ultrasound waves and pressure waves in fluids.