When two sound sources of the same amplitude but of slightly different frequencies $v_1$ and $v_2$ are sounded simultaneously, the sound one hears has a frequency equal to
  • A$|v_1 -v_2|$
  • B$\left[ {\frac{{{v_1} + {v_2}}}{2}} \right]$
  • C$\sqrt {{v_1}{v_2}} $
  • D$[v_1 + v_2]$
Easy
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