AP EAMCET202422 May 2024Evening ShiftPhysicsWaves and SoundActual
The fundamental frequency of an open pipe is 100 Hz . If the bottom end of the pipe is closed and 1 3 rd of the pipe is filled with water, then the fundamental frequency of the pipe is
Options
- A200 Hz
- B100 Hz
- C75 Hz
- D150 Hz
Correct answer
C. 75 Hz
Step-by-step solution
For open organ pipe, ₀= v 2 L =100 ~Hz For closed organ pipe aligned & 2 ~L 3 = 4 & = 8 ~L 3 aligned Fundamental frequency ₀^1= v = v 8 ~L = 3 v 8 ~L = 3 4 ( v 2 ~L )= 3 4 100=75 ~Hz