which statement is true about electromagnet and mechanical waves.

Question

A. electromagnetic waves all have the same frequency but mechanical waves occur with different frequencies and wavelengths

B.electromagnetic waves can travel without a medium but mechanical waves require a medium to travel

C. electromagnet waves travel slower than mechanical waves.

D. electromagnet waves are transverse but mechanical waves are longitudinal

Answer 1

B. electromagnetic waves can travel without a medium but mechanical waves require a medium to travel