Question

By mistake if you make the hole in the cup of a toy telephone bigger, will it be possible to hear the sound? justify your answer ​

Answer 1

Take two empty ice cream cups. Make a small hole at the bottom of each cup and pass a long thread through them. Tie a knot or match stick at each end of the thread so that the thread does not slip out through the holes. This makes a toy - telephone.

Now, use the toy telephone as shown in figure and talk to your friend. You will be able to hear the sound of your friend. This shows that sound travels through the thread and reaches your ear. Thus, sound can travel through a solid.