Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


Light and sound do not have mass. Light is electromagnetic wave transverse in nature while sound is longitudinal wave but since it requires a material medium to travel it is a mechanical wave. 
Moreover matter is the one which occupies the space. But waves do not occupy space. Electromagnetic waves don't need material medium, but sound waves do need a material medium to travel. Hence light and sound aren't considered as matter.
0 0 0
Matter is one which occupies space.But light is a beam and sound is a wave, these won't occupy space .Which means they donot have any mass 
 So light and sound are not considered as matter.
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts