Question

write an activity to show that sound
needs a material medium for its propagation​

Answer 1

Answer:

take a school bell when you hits it with hammer it ptoduce sound

Answer 2

Answer:

Bell-jar experiment demonstrates that sound needs a medium for its propagation. Take an electric bell and an air tight glass bell jar connected to a vacuum pump. Suspend the bell inside the jar, and press the switch of the bell. You will be able to hear the bell ring.

Explanation:

Hope it helped u my dear frnd!!