Question

Question #4cc73

Answer 1

Similarity -

1) Both of them are periodic disturbances in a region which propagate.

2) Both of them can carry energy

Dissimilarity -

1) Compressional waves are elastic waves and hence require a medium for their propagation while EM waves need no medium for their propagation.

2) EM wave propagates with oscillating perpendicular electric and magnetic fields while Compressional waves propagate via compressions and rarefractions in the medium through which it propagates.