When two tuning forks $A$ and $B$ are sounded together, $x ext{ beat/s}$ are heard. Frequency of $A$ is $n$. Now, when one prong of fork $B$ is loaded with a little wax, the number of beats decreases. The frequency of fork $B$ is [JIPMER 2018]

Question

When two tuning forks $A$ and $B$ are sounded together, $x	ext{ beat/s}$ are heard. Frequency of $A$ is $n$. Now, when one prong of fork $B$ is loaded with a little wax, the number of beats decreases. The frequency of fork $B$ is [JIPMER 2018]

Aicharya · Accepted Answer

Frequency of $B$ can be $n + x$ or $n - x$. When $B$ is loaded with wax, its frequency will decrease. So, if its original frequency is $(n + x)$, then beat frequency will decrease.

When two tuning forks $A$ and $B$ are sounded together, $x\text{ beat/s}$ are heard. Frequency of $A$ is $n$…

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