Question

describe an activity to show that sound requers a material medium for. its propagation​

Answer 1

Answer:

A sound wave travels in the form of a longitudinal wave and it requires a material medium for its propagation. ... The bell jar experiment is a common experiment used to demonstrate that sound needs a medium to travel. A bell jar is a laboratory equipment used for creating a vacuum.

Explanation:

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Answer 2

Answer:

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Explanation:

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. ... This is so because almost all air has been pumped out. This shows that sound needs a material medium to travel.