Question

16. The fundamental frequency of a pipe closed at one end is 100 Hz. If close end is open the he
frequency of same pipe will be
(1) 100 Hz
(2) 200 Hz
(3) 50 Hz
(4) 400 Hz
10D Die​

Answer 1

Answer: 200 Hz

Explanation: see attachment...

Answer 2

Dear Student,

◆ Answer - (2)

f' = 200 Hz

● Explanation -

Fundamental frequency of closed pipe is -

f = v/4l

Fundamental frequency of open pipe is -

f' = v/2l

f' = 2(v/4l)

So that,

f' = 2f

f' = 2 × 100

f' = 200 Hz

Hence, fundamental frequency of the open pipe is 200 Hz.

Thanks dear. Hope this is helpful to you..