Question

1.What is required for a sound to travel?
2.What experiment is useful for proving a sound requires a medium?
3. What will be increase if the temperature of a medium increase?
4. Write a super conductor of sound,​

Answer 1

Answer:

1. Sound needs a material medium for their propagation like solid, liquid or gas to travel because the molecules of solid, liquid and gases carry sound waves from one point to another. Sound cannot progress through the vacuum because the vacuum has no molecules which can vibrate and carry the sound waves.

2.The bell jar experiment is a common experiment used to demonstrate that sound needs a medium to travel.

3.As the temperature of the medium increases, speed of sound increases. speed of sound decreases. no effect on speed of sound.

4.A superconductor is a substance of zero resistance at a very low temperature. Example: Mercury at 4.2 K.