(A) : Solids can support both longitudinal and transverse waves but only mechanical longitudinal waves can propagate in gases.
(R) : For the propagation of mechanical transverse waves, medium must also necessarily have the property of rigidity.

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(A) is true but (R) is false

Both (A) and (R) are true but (R) is not the correct explanation of (A)

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

answer is A.

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Detailed Solution

Both longitudinal and transverse waves can travel through solids, but only mechanical longitudinal waves can do so in gases.
The feature of rigidity is also a necessary component for the propagation of mechanical transverse waves in a medium.

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