Question

A material medium is necessary for the propagation of sound from one place to another.Please explain with the help of an experiment

Answer 1

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◆ Sound is a form of energy which cannot travel through vacuum and always needs a material medium to travel.
◆ Sound travels in the form of ______. (Can you answer)?

⭐️⭐️⭐️⭐️ EXPERIMENT TO DEMONSTRATE THE ABOVE FACT ⭐️⭐️⭐️⭐️

◆ Aim : To show that sound needs a medium for PROPAGATION

◆ Things needed : A battery, a glass bell, a jar, connecting wires, a switch, electric vell, vacuum pump and cork.

◆ Method :
1. Take a glass bell jar and place an electric bell inside it.
2. Connect the wires of the electric bell and also connect a switch between them. Close the bell jar with an air tight cork.
3. When the switch is pressed, the hammer of electric bell strikes the gong and sound is produced.
4. Now, remove the air present inside the jar and press the switch again. Notice the change.

◆ Observation : At the ultimate stage, sound cannot be heard at all, though the hammer is still striking the gong.

◆ Conclusion : Sound always needs a material medium to travel (or propagate).




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Answer 2

Explanation:

hey mate here is your answer