A cylindrical tube open at both the ends has a fundamental frequency of 390 {\Hz} in air. If 1 \/ 4^{\text{th }} of the tube is immersed vertically in water the fundamental frequency of air column is

KCET 2009 Physics Solved Paper

Question : 33 of 60

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A cylindrical tube open at both the ends has a fundamental frequency of 390‌Hz in air. If 1∕4‌th ‌ of the tube is immersed vertically in water the fundamental frequency of air column is

130‌Hz
390‌Hz
520‌Hz
260‌Hz

Validate

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