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The string of a sonometer is divided int...

The string of a sonometer is divided into two parts with the help of a wedge. The total length of the string is 1 m and the two parts differ in length by 2 mom. When sounded together, they produced two beats. The frequencies of the notes emitted by the two parts are

A

499 and 497

B

501 and 499

C

501 and 503

D

none of the above.

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