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Sound. — Science STD 8 — Question

Tamilnadu BoardEnglish MediumSTD 8ScienceSound.4 Marks
Question
Explain the types of mechanical wave.
✓

Answer

There are two types of mechanical wave.
  1. Transverse wave
  2. Longitudinal wave
1. Transverse wave:
  • The particles of the medium vibrate in a direction, which is perpendicular to the direction of propagation of the wave.
  • E.g. Waves in strings, light waves, etc.
  • Transverse waves are produced only in solids and liquids.
2. Longitudinal wave:
  • The particles of the medium vibrate in a direction, which is parallel to the direction of propagation of the wave.
  • E.g. Waves in springs, sound waves in a medium.
  • Longitudinal waves are produced in solids, liquids and also in gases.

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