Explain how sound is propagated as a lon...

Explain how sound is propagated as a longitudinal wave .

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Which of the following statements are true wave motion? a) Mechanical transverse waves can propagate through all mediums. b) Longitudinal waves can propagate through solids only c) Mechanical transverse waves can propagate through only d) Longitudinal waves can propagate through vacuum.

Mechanical transverse waves can propagate through all mediums.

Longitudinal waves can propagate through solids only

Mechanical transverse waves can propagate through only

Longitudinal waves can propagate through vacuum.

the wave intensity remains constant for a plane wave

the wave intensity decreases as the inverse of the distance from the square for a spherical wave

the wave intensity decreases as the inversee squre of the distance from the source for a spherical wave

total intensity of the spherical wave over the spherical of the distance surface centered as the source remains constant at all times