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A tuning fork of frequency 512 Hz makes 4 beatsper second with the vibrating string of a pianoThe beatfrequency decreases to 2 beats per sec when the tensionin the piano string is slightly increasedThe frequency ofthe piano string before increasing the tension was[2010]

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A tuning fork of frequency 512 Hz makes 4 beatsper second with the vibrating string of a pianoThe beatfrequency decreases to 2 beats per sec when the tensionin the piano string is slightly increasedThe frequency ofthe piano string before increasing the tension was[2010]






 
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