Two strings \( X \) and \( Y \) of a sitar produce a beat frequency...

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Two strings \( X \) and \( Y \) of a sitar produce a beat frequency 4 \( \mathrm{Hz} \). When the tension of the string \( Y \) is slightly increased the
\( \mathrm{P} \) beat frequency is found to be \( 2 \mathrm{~Hz} \). If the frequency of \( X \) is \( 300 \mathrm{~Hz} \), then the original frequency of \( Y \) was
W
[UPSEAT 2000; AMU (Engg.) 2010]
(a) \( 296 \mathrm{~Hz} \)
(b) \( 298 \mathrm{~Hz} \)
(c) \( 302 \mathrm{~Hz} \)
(d) \( 304 \mathrm{~Hz} \)
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