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
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
$\left| {{v_1} - {v_2}} \right|$
- B
$\left[ {\frac{{{v_1} + {v_2}}}{2}} \right]$
- C
$\sqrt {{v_1}{v_2}} $
- D
$\left[ {{v_1} + {v_2}} \right]$
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