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Class 11 NEET Physics Waves Questions Questions

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Question : 43 of 96

Marks: +1, -0

A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string of a piano. The beat frequency decreases to 2 beats per sec when the tension in the piano string is slightly increased. The frequency of the piano string before increasing the tension was

510 Hz
514 Hz
516 Hz
508 Hz

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