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Take a metal shallow pan. Hang it at a convenient place in such a way that it does not touch anything. Now, strike it with a stick. Touch the pan gently with your index finger. Do you feel the vibrations? Again, strike the pan with the stick and hold it tightly with your hands, immediately after striking. Do you still hear the sound?

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Case 1: 

1. Now, strike it with a stick. 

2. Touch the pan gently with your index finger. Do you feel the vibrations?

Observation: we can the feel the vibration for 

Case 2:

1. Strike the pan with the stick and hold tightly with your hands, immediately after striking. 

2. Do you still hear the sound? 

Observation: we cannot hear the sound. 

Conclusion: This activity shows the vibrating pan produces sound.sometime.

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