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An air column in tun=be 32cm long, close...

An air column in tun=be 32cm long, closed at one end, is in resonace with a tuning fork. The air column in another tube, open at both ends, of length 66cm is in resonance with another tuning frok.When those two tuning forks are sounded together , they produce 8 beats per second together, they produce 8 beats per second. then the frquencies of the twpo tuning forks are, (consider fundamental frequencies only)

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