For propagation fo mechanical waves, the medium must possess ………………..,……………….,…………………. .

For propagation of mechanical wave, the medium must possess __________ .

For propagation of mechanical wave ____ medium is necessary .(material )

During the propagation of e.m. wave in a medium

During the propagation of e.m. wave in a medium

During propagation of sound wave through air medium

For propagation of sound waves through a medium, the medium should posses :

For propagation of sound waves through a medium, the medium should posses :

(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.

(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.