When a piano technician strikes a key, 3 beats per second are heard against a 330 Hz…

PHYSICS · Subjective · CBSE · Physics · Waves · Waves

Problem

When a piano technician strikes a key, 3 beats per second are heard against a 330 Hz electronic tone. After the string is gently tightened, the beats disappear. What was the piano string’s frequency before it was tightened?

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