Which type of waves can propagate in solids ?

Which of following waves cannot propagate in vacuum ?

As a wave propagates,

(a) Give reason why transverse waves can be propagated in solids, (b) Give reason why longitudinal waves can be propagated through all the three types of media - solids, liquids and gases. (c) Describe in brief about two types of waves that can be propagated on the free surface of water.

Are the waves propagating in solids transverse, longitudinal or both ?

Explain why (or how): (a) in a sound wave a displacement node is a pressure antinode and vice versa. (b) bats can ascertain distances, directions, nature, and sizes of the obstacles without any ''eyes''. (c ) a violin note and sitar note may have the same frequency. yet we can distinguish between the two notes. (d) solids can support both longitudinal and transverse waves, but only longitudinal waves can propagate in gases, and (e ) the shape of a pulse gets distorted during propagation in a dispersive medium.

Which type of waves are used in electron microscope ?

Which properties are independent of each other for waves propagating in the medium ?