Practice free →
HomeCBSE Class 11 › Physics › For an open organ pipe of length $L$, the fundam…

For an open organ pipe of length $L$, the fundamental frequency corresponds to ![](https://qallery.app/diagrams/v2_ef49ea522acc/img-001.jpeg)

A$\lambda=L$
B$\lambda=4L$
C$\lambda=2L$
D$\lambda=\dfrac{L}{2}$
Answer & Solution
Correct answer: C. $\lambda=2L$
In an open organ pipe, both ends are displacement antinodes. For the first harmonic, the pipe contains half a wavelength, so $L=\lambda/2$. Hence $\lambda=2L$, which is option C.
Solve this in the app — CBSE Class 11 practice & 24k+ MCQs →
Related questions