Question

A mobile placed in an empty closed cylinder is ringing, if air is removed completely form the cylinder what will you experience?

Answer 1

Answer:

• Sound requires a medium to transmit vibrations.
• When air is present in the closed cylinder, you can hear the ringing sound. This is because the sound vibrations are passed through the air to reach our ears.
• However, in the absence of air, the medium becomes vacuum. In a vacuum surrounding, sound waves cannot transmit and thus, you can no longer hear the ringing of the mobile phone.