A student is performing the experiment of Resonance Column. The diameter of the column tube is 4 cm. The distance frequency of the tuning for k is 512 Hz. The air temperature is 38°C in which the speed of sound is resonance occurs, the reading of the water level in the column is
(A) 14.0 (B) 15.2 (C) 16.4 (D) 17.6
