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Two tuning forks produce 5 beats//sec wh...

Two tuning forks produce `5 beats//sec` when sounded together. They can be brought in unison with length of 88 cm and 90 cm respectively of a sonometer wire under ension.The frequencies of the forks are

A

440 and 445 Hz

B

110 and 115 Hz

C

220 and 225 Hz

D

225 and 230 Hz

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