Non stiff media are described as?

Non stiff media are described as?

• A. Elastic
• B. Compressible
• C. Elastic and Compressible
• D. Rigid

Answer: (C)

Non stiff media can deform under forces and regain their original shape, which is elasticity, and they can also change their volume when pressure is applied, which is compressibility. Both properties matter for how disturbances move through a medium: elasticity provides the restoring force that supports oscillations, while compressibility allows the medium to experience pressure-induced volume changes that carry the wave. If a medium were elastic but not compressible, there’d be little or no volume change to support wave propagation; if it were compressible but not elastic, it could deform without returning to its original state, so sustained wave motion wouldn’t happen. A rigid medium resists deformation altogether, so it wouldn’t support the typical wave dynamics. Therefore, non stiff media are described as elastic and compressible.

Non stiff media can deform under forces and regain their original shape, which is elasticity, and they can also change their volume when pressure is applied, which is compressibility. Both properties matter for how disturbances move through a medium: elasticity provides the restoring force that supports oscillations, while compressibility allows the medium to experience pressure-induced volume changes that carry the wave. If a medium were elastic but not compressible, there’d be little or no volume change to support wave propagation; if it were compressible but not elastic, it could deform without returning to its original state, so sustained wave motion wouldn’t happen. A rigid medium resists deformation altogether, so it wouldn’t support the typical wave dynamics. Therefore, non stiff media are described as elastic and compressible.