When two tuning forks (fork 1 and fork 2 ) are sounded simultaneously, 4 beats/s are heard. Now,...

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When two tuning forks (fork 1 and fork 2 ) are sounded simultaneously, 4 beats/s are heard. Now, some tape is attached on the prong of the fork 2 .
When the tuning forks are sounded again, 6 beats \( / \mathrm{s} \) are heard. If frequency of fork 1 is \( 200 \mathrm{~Hz} \), then what was the original frequency of fork 2 ?
(a) \( 200 \mathrm{~Hz} \)
(b) \( 202 \mathrm{~Hz} \)
(c) \( 196 \mathrm{~Hz} \)
(d) \( 204 \mathrm{~Hz} \)
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