Question

how can you show that sound can't travel through a vaccum? draw a labelled diagram of the apparatus used.​

Answer 1

The bell jar experiment is a common experiment to show that sound cannot travel through a vacuum

A bell jar’s shape is similar to that of a bell. A bell jar is placed on a base and connected to a vacuum pump as shown in the picture below. The air in the jar is varied by pumping the air out of it.

Answer 2

By using Bell Jar experiment we can sound can't travel through vacuum and it requires a medium to propagate

Explanation:

• We can prove the travelling of sound, which requires a medium, by using Bell jar experiment

• Bell jar is a commonly used apparatus in science laboratories.

• The reason is bell jar can produce strong vacuums and also bell jars are transparent in nature.
• Bottom of the bell jar is connected to the vacuum pump to create vacuum inside the Bell jar.
• Place an electric bell inside the bell jar to produce sound inside the bell jar.
• Before create the vacuum inside the jar ring the electric bell.
• The electric bell rings and its hammer strikes the gong and sound  is also audible due to the presence of the air inside the Bell jar.
• Now remove the air present inside the jar buy using vacuum pump to create vacuum inside.
• Again ring the bell, the sound will not be audible to our ears but we can notice that the hammer continuously hitting the gong.
• This is because that there is no air inside the jar to propagate the sound created inside the bell jar.
• This proves that  the sound can't travel through vacuum and it needs a medium to propagate.

To learn more ...

1.  https://brainly.in/question/1107442

2. https://brainly.in/question/7723394