Question

take two plastic glasses and tie a thread between them to make a toy phone does the voice of your friend reach you through the thread?Take metal wire of the thread and also change the length of the wire and repeat the activity ​

Answer 1

Explanation:

Yes, actually sound is produced by the vibration of the medium and transfer of these ways to the ears where they vibrate ear drums.

In this case, the sound waves produced by me or my friend vibrate the bottom of the cup and in return they are transferred through the vibration of the thread to the bottom of the other cup and then to the ear of the opposite person.

When we use metal string instead of thread, sound waves even transfer better due to the closely packed molecules of metal.

Reduction in length results in the variation of the intensity of sound.

Answer 2

Answer:

This is your answer.

Explanation:

Hope it helps you..