Question

Distinguish between longitudinal and transverse mechanical waves ​

Answer 1

Answer

⚫Longitudinal waves

◾These waves can be set up in all the three material, solids, liquids and gases)media.

◾The particles of the medium vibrate parallel to the direction of propagation of the wave.

◾The density of the medium increases in the region of compressions and decreases in the region of rare factions.

⚫Transverse waves

◾These waves can be set up only in solids and on the surface of liquids.

◾The particles of the medium vibrate at right angles to the direction of propagation of the wave.

◾The density of the medium remains the same in the Plane of the wave.

Answer 2

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» Longitudinal Mechanical Waves
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• Waves direction is parallel to vibration direction

• These cannot be polarised.

• Compression and rarefraction occurs in medium.

• It is possible in all mediums like solid, liquid, gas etc.

• Example :- Sound waves in air.
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» Transverse Mechanical Waves
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• Waves direction is perpendicular to vibration direction.

• They can be polarised.

• Crest and trough occurs in medium.

• It is possible in solids only.

• Example :- Surface water waves, Vibrations in a string etc.

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