A cylindrical tube open at both the ends has a fundamental 1 frequency of 390 Hz in air If th of the tube is immersed 260 Hz

Question

A cylindrical tube open at both the ends has a fundamental 1 frequency of 390 Hz in air If th of the tube is immersed 260 Hz vertically in water the fundamental frequency of air column will be 310 Hz 620 Hz 415 Hz 4

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