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Question: Answered & Verified by Expert
If frequencies are $(v-1),(v+1)$, then find beats.
PhysicsWaves and SoundJIPMERJIPMER 2019
Options:
  • A 2
  • B 1
  • C 3
  • D 4
Solution:
2558 Upvotes Verified Answer
The correct answer is: 2
For frequencies $v_1=v-1$ and $v_2=v+1$.
$\begin{aligned}
\text { Beats } & =\text { difference of frequencies } \\
& =v_2-v_1=(v+1)-(v-1)=v+1-v+l=2
\end{aligned}$

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