Two tuning forks of frequency 256 and 258 vibrating per second are sounded together, then time interval between consecutive maxima heard by the observer is.

2 sec

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1 sec

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0.5 sec

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1/4 sec

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Solution

The correct option is C 0.5 sec
$\begin{matrix} n_{1} = 256 n_{2} = 258 B o t h t u n i n g f o r k s a r e m a k i n g b e a t s s o, w e k n o w t h a t t_{(f o r max .)} = \frac{1}{n_{2} - n_{1}} sec = \frac{1}{258 - 256} = 0.5 sec \end{matrix}$
Hence, the option $C$ is the correct answer.

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