Which of the following statements are true wave motion?

Options

A. Mechanical transverse waves can propoagate through all mediums
B. Longitudinal waves can propagate through solids only
C. Mechanical transverse waves can propagate through solids only
D. Longitudinal waves can propagate through cacuum

Answer

C

Explanation

When mechanical transverse wave propagates through a medium, the constituent of the medium oscilliate perpendicular to wave motion causing change is shape. That is each, element of the medium is subjected to shearing stress. Solids and strings have shear modulus, that is why, sustain sheraring stress.
Fluids have no shape, of their own, they yield to shearing stress. This is why transverse waves are possible in solids strings but not in fluids.