Question
A cylindrical tube, open at both ends, has a fundamental frequency, f, in the air. The tube is dipped vertically in water so that half of it is in water. The fundamental frequency of the air-column is now
-
f
-
f/2
-
3f/4
-
2f
Solution
A.
f
Initially for open organ pipe, fundamental frequency,
But when it is half dipped in water, then it becomes closed organ pipe of length l/2. In this case fundamental frequency.
