Q. 3 B3.6( 26 Votes )
Answer the follow
Activity: To show that sound can do work
Materials required: music system which produces ultra high frequencies
Procedure: Put cotton balls in your ears. Now connect the plug of music system to the electricity board. Switch on the system and increase its volume to the full level.
Observations: You will observe that the objects in the rooms are vibrating and if it is in the ultra high frequency range then the glass panes will also break.
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