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There are two types of mechanical waves, they are
- Transverse wave
- Longitudinal wave
Transverse wave:
- In a transverse wave, the particles present in the medium vibrate in a direction perpendicular to the direction of propagating wave.
- Example: Waves in strings, light waves, etc.
- Transverse waves are produced only in solids and liquids.
![shutterstock_432021079.png](https://resources.cdn.yaclass.in/2655791f-5b5a-4205-8a31-354c63a15983/shutterstock432021079w600.png)
Transverse nature of waves
Longitudinal wave:
- In a longitudinal wave, the particles of the medium vibrate in a direction parallel to the direction of propagation of the wave.
- Example: Waves in springs, sound waves in a medium.
- Longitudinal waves are produced in solids, liquids and also in gases.
![shutterstock_432021079 (1).png](https://resources.cdn.yaclass.in/29054fd3-37db-42e3-a9be-4a519f01fed0/shutterstock4320210791w600.png)
Longitudinal nature of waves
The seismic wave formed during an earthquake is an example of a longitudinal wave. The waves travelling through Earth's layers due to explosions and earthquakes are called seismic waves. Using a hydrophone and seismometer, one can study these waves and record them. Seismology is the branch of science that deals with the study of seismic waves.
![shutterstock_1006129528.png](https://resources.cdn.yaclass.in/d7ec7a95-4884-478f-a829-a64d5a0e28d1/shutterstock1006129528w300.png)
Seismograph