Two turning forks of frequencies n1 and n2 produces n beats per second. If n2 and n are known, n1 may be given by
- A$${{{n_2}} \over n} + {n_2}$$
- B$${n_2}n$$
- C$${n_2}\, \pm \,n$$
- D$${{{n_2}} \over n} - {n_2}$$
✓ Correct answer: C
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