A) \[\frac{{{n}_{2}}}{n}+{{n}_{2}}\]
B) \[{{n}_{2}}n\]
C) \[{{n}_{2}}\pm n\]
D) \[\frac{{{n}_{2}}}{n}-{{n}_{2}}\]
Correct Answer: C
Solution :
Beat frequency = number of beats/sec. \[n={{n}_{2}}\pm {{n}_{1}}\] \[\therefore \] \[{{n}_{1}}={{n}_{2}}\pm n\]You need to login to perform this action.
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