Correct Answer - Option 1 : Because the fluid medium cannot sustain shear strain
CONCEPT:
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Bulk modulus is the ratio of shearing strain to the fractional change in volume and is given by
\(\beta = - \frac{P}{\frac{\Delta V}{V}}\)
Where P = Pressure,\(\frac{\Delta V}{V}\) = Fractional change in volume
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Transverse waves are those waves when while passing through the medium the particles of the medium oscillate perpendicularly to the direction of propagation.
EXPLANATION :
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During the propagation of the transverse wave, the particles of the medium will be vibrating perpendicular to the direction of propagation of the wave which involves the change in the shape of the medium.
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During the propagation of the wave, there will be a change in the volume of the medium or there will be shearing stress on the medium.
- The medium like gases and liquids cannot sustain the shearing stress of the medium hence this medium wouldn't be able to propagate transverse waves through it. Hence, option 1 is the answer
- When a wave travels through any medium there will be a difference in pressure. Hence option 2 is incorrect.
- All the medium has their own density. Hence option 3 is incorrect
- All kind of waves travels by creating the pressure difference. Hence option 4 is incorrect.
