Question

Problem 16.21 16 of 29 What is the fundamental frequency of this water-filled tube? Express your answer with the appropriate units. ReviewI Constants Periodic Table To study the physical basis of underwater hearing in frogs, scientists used a vertical tube filled with water to a depth of 1.3 m. Amicrophone at the bottom of the tube was used to create standing sound waves in the water column. Frogs were lowered to different depths where the standing waves created large or small pressure variations. Because the microphone creates the sound, the bottom of the tube is a pressure antinode; the water's surface, fixed at atmospheric pressure, is a node. 4615 Hz Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B A frog sits on a platform located 0.26 m from the bottom. What is the lowest frequency that would result in a sound node at this point? Express your answer with the appropriate units. f- Value Units

Answer 1

V = fL

f = V/L