You are provided with three similar,but slightly different tuning forks.When A and B are both struck,a beat frequeny of `f_(AB)` is heard.If A and C are both struck,a beat frequency of `f_(AC)` is heard.It was noticed that `f_(AB)` < `f_(AC)` .If B and C are simultaneously struck,what will be the observed beat frequency?

Options

A. `|f_(AB)+f_(AC)|`
B. `|f_(AB)-f_(AC)|`
C. Either `|f_(AB)+f_(AC)| or |f_(AB)-f_(AC)|` will be heard
D. Both `|f_(AB)+f_(AC)| and |f_(AB)-f_(AC)|` will simultaneously be heard

Answer

C