# Transverse waves can be distinguished from longitudinal waves using…

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A. diffraction

B. reflection.

C. polarization.

D. refraction.

C

## DETAILS…

Polarization is the constricting of waves so that they can vibrate in one plane.

Only transverse waves can be polarized, this is because the vibrations of transverse waves occur in all directions which are perpendicular to its direction of travel. Therefore, all these waves in different perpendicular directions will be confined to one plane.

But longitudinal waves cannot be plane polarized because the direction of its vibration is parallel to its direction of travel. Therefore, we cannot polarize and change the direction of vibration of a wave which is parallel to its travel… its either you allow the wave to travel its natural direction, or you kill it.

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This is why polarization can be used to distinguish between transverse waves and longitudinal waves.

### Now for the right answer to the above question:

1. Option A is incorrect. both types of waves can be diffracted.
2. Option B is incorrect. both types of waves can be reflected.
3. C is correct. longitudinal waves cannot be polarized.
4. D is not the correct answer. Both waves can undergo refraction.

## KEY-POINTS…

• Transverse waves are simply generated by perpendicular vibrations.
• While longitudinal waves are generated by parallel vibrations.

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