Free help with homework

Why join Brainly?

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



The speed of light waves doesn't change.But the speed of sound waves isn't same all the time.

For example,the speed of light waves doesn't change when it goes from water to air.But the speed of sound waves change from 1435m/s to 340m/s.

The light waves is electromagnetic wave.The sound waves is mechanical waves.

The mechanical wave is a wave that propagates as an oscillation of matter, and therefore transfers energy through a medium.

0 0 0
Speed of light is fast than of sound
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