NEET2025Physics-organ pipes
NEET 2025 Physics Sound Waves MCQ Question
Type: MCQ-conceptual-Medium-Class 11
A pipe open at both ends has a fundamental frequency f in air. The pipe is now dipped vertically in a water drum to half of its length. The fundamental frequency of the air column is now equal to:
A
f/2
B
f
C
3f/2
D
2f
Correct Answer
Option B
Detailed Explanation
When the pipe is half submerged, it behaves like a closed pipe with a fundamental frequency of 3f/2, as the length of the air column is halved.
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