(i) Overtones are produced differently by the guitar and the violin. Even though the notes from a guitar and a violin vibrate at the same frequencies, it is possible to distinguish between them. (fourth) The bulk modulus of elasticity exists in both solids and fluids. As a result, longitudinal waves can pass through them both. Gases, on the other hand, do not have a shear modulus like solids. As a result, transverse waves are unable to penetrate through gases.
(ii) The bulk modulus of elasticity exists in both solids and fluids. As a result, longitudinal waves can pass through them both. Gases, on the other hand, do not have a shear modulus like solids. As a result, transverse waves are unable to penetrate through gases.