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Waves — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsWaves1 Mark
MCQ
Which of the following statements are true for wave motion:
  • A
    Mechanical transverse waves can propagate through all mediums.
  • B
    Longitudinal waves can propagate through solids only.
  • ✓
    Mechanical transverse waves can propagate through solids only.
  • D
    Longitudinal waves can propagate through vacuum.
✓

Answer

Correct option: C.
Mechanical transverse waves can propagate through solids only.
In case of mechanical transverse wave propagates through a medium, the medium particles oscillate right angles to the direction of wave motion or energy propagation. It travels in the form of crests and troughs.
When mechanical transverse wave propagates through a medium element of the medium is subjected to shearing stress. Solids and strings have shear modulus, that is why, sustain shearing stress. Fluids have no shape of their own, they yield to shearing stress. Transverse waves can be transmitted through solids, they can be setup on the surface of liquids. But they cannot be transmitted into liquids and gases.

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