MHT CET2017PhysicsWaves and Sound
The fundamental frequency of an air column in a pipe closed at one end is 100 Hz . If the same pipe is open at both the ends, the frequencies produced in Hz are
Options
- A100, 200, 300, 400, .....
- B100, 300, 500, 700, .....
- C200, 300, 400, 500 ,....
- D200, 400, 600, 800, .....
Correct answer
D. 200, 400, 600, 800, .....
Step-by-step solution
For a closed pipe fundamental frequency n 1 = V 4 L = 100 Hz For an open pipe fundamental frequency n' 1 = V 2 L = 2 n 1 = 200 Hz In an open pipe all multiples of the fundamental are produced.