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JEE Mains · Physics · STD 11 - 14. waves and sound
A pipe open at both ends has a fundamental frequency \(f\) in air. The pipe is dipped vertically in water so that half of it is in water. The fundamental frequency of the air column is now ..... \(f\)
- A \(2\)
- B \(1\)
- C \(0.5\)
- D \(0.75\)
Answer & Solution
Correct Answer
(B) \(1\)
Step-by-step Solution
Detailed explanation
The fundamental frequency in case \((a)\) is \(f=\frac{v}{2 \ell}\) The fundamental frequency in case \((b)\) is \(f^{\prime}=\frac{v}{4(\ell / 2)}=\frac{u}{2 \ell}=f\)
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