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KCET 2006 Physics Solved Paper

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Question : 42

Total: 60

A tuning fork A produces 4 beats per second with another tuning fork B of frequency 320‌Hz. On filing one of the prongs of A,4 beats per second are again heard when sounded with the same fork B. Then the frequency of the fork A before filing is

328‌Hz
316‌Hz
324‌Hz
320‌Hz

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