Question
A cylindrical tube open at both ends has a fundamental frequency of 390 Hz in air. If $ \frac{1}{4} $ of the tube is immersed vertically in water, the fundamental frequency of the air column is:
A cylindrical tube open at both ends has a fundamental frequency of 390 Hz in air. If $ \frac{1}{4} $ of the tube is immersed vertically in water, the fundamental frequency of the air column is: