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Beat Frequency

THE FREQUENCI...

Question

THE FREQUENCIES OF TWO TUNING FORKS A AND B ARE 250hz AND 255hz RESPECTIVELY.BOTH ARE SOUNDED TOGETHER.HOW MANY BEATS WILL BE HEARED IN 5 SECONDS?

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Solution

Beat frequency=It is the number of beats produced per second.
It is numerically equal to the difference between the frequencies of the superimposing waves
So beat produced in one second =255-250=5hz
beat produced in 5 second =5×5 =25hz

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