What are longitudinal waves ?
GSEB - Class 9 Chapter - 2. Wave Motion and Sound Page 24
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the longitudinal waves are that come straight from other area that are very cold waves there are the mountain that stop the waves that Is called longitudinal wages
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Longitudinal waves are waves in which the displacement of the medium is in the same direction as, or the opposite direction to, the direction of propagation of the wave. Mechanical longitudinal waves are also called compressional or compression waves, because they produce compression and rarefaction when traveling through a medium, and pressure waves, because they produce increases and decreases in pressure. The other main type of wave is the transverse/transversal wave, in which the displacements of the medium are at right angles to the direction of propagation. Some transverse waves are mechanical, meaning that the wave needs a medium to travel through. Transverse mechanical waves are also called "shear waves".
By acronym, "longitudinal waves" and "transverse waves" were occasionally abbreviated by some authors as "L-waves" and "T-waves" respectively for their own convenience.[1] While these two acronyms have specific meanings in seismology (L-wave for Love wave[2] or long wave[3]) and electrocardiography (see T wave), some authors chose to use "l-waves" (lowercase 'L') and "t-waves" instead, although they are not commonly found in physics writings except for some popular science books.[4]
By acronym, "longitudinal waves" and "transverse waves" were occasionally abbreviated by some authors as "L-waves" and "T-waves" respectively for their own convenience.[1] While these two acronyms have specific meanings in seismology (L-wave for Love wave[2] or long wave[3]) and electrocardiography (see T wave), some authors chose to use "l-waves" (lowercase 'L') and "t-waves" instead, although they are not commonly found in physics writings except for some popular science books.[4]
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