Which type of wave does not require a medium in order to travel?

mechanical

electromagnetic

evidentiary

circumstantial

Question

Which type of wave does not require a medium in order to travel?

mechanical
 
   electromagnetic
 
   evidentiary
 
   circumstantial

anonymous · Answer

medium; a substance or material in which something exists or occurs

anonymous · Answer

@AravindG

aravindg · Answer

Electromagnetic waves do not require a medium to travel.

anonymous · Answer

Which type of wave travels more slowly through denser material?
   mechanical
 
   circumstantial
 
   electromagnetic
 
   evidentiary

anonymous · Answer

electro

vincent-lyon.fr · Answer

Electromagnetic!
On the contrary, mechanical wave travel faster through denser medium because they are more difficult to compress.