GP Sound Waves

Sound waves cannot travel through a

  1. copper wire placed in air
  2. silver slab placed in air
  3. glass prism placed in water
  4. wooden hollow pipe placed in vacuum


Sound cannot travel through a vacuum. A vacuum is an area where there are no liquids, gases, or solids of any kind. There is absolutely nothing in a vacuum. If there are no substances, then there are no particles for the sound waves to vibrate, which means the sound waves cannot travel.

The correct option is D.