Which statement best describes longitudinal waves?
a) particles of the wave medium move perpendicular to the direction of propagation of the wave.
b)longitudinal waves do not require a material medium for propagation.
c)particles of the wave medium move parallel to the direction of propagation of the wave.
d) particles of the wave medium move long distances from the source of the wave to carry energy.

The correct option is (C).

Explanation:

When the particles of the medium travel parallel to the direction of the propagation of the wave then the wave is said to be longitudinal wave.

It needs medium to travel. It can travel in solid, liquid and gas.

The example of the longitudinal wave is a sound wave. Sound wave consists of compression and rarefaction.

When the particles of the medium travel perpendicular to the direction of the propagation of the wave then the wave is said to be transverse wave.

Therefore, the best statement which describes the longitudinal wave is option (C).

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

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joke:

h o h o hope you have a merry christmas!