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10/01/2021 10:29 am
Topic starter
Take a tuning fork and set it vibrating by striking its prong on a rubber pad. Bring it near your ear.
Do you hear any sound?
Touch one of the prongs of the vibrating tuning fork with your finger and share your experience with your friends.
Now, suspend a table tennis ball or a small plastic ball by a thread from support. Touch the ball gently with the prong of a vibrating tuning fork.
Observe what happens and discuss with your friends.
1 Answer
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10/01/2021 10:30 am
Yes, we heard sound.
If we touch the ball with tuning fork set into vibration, the ball gets displaced from its mean position and starts moving.