KcetWavesKCET 2018MCQ+1 / -02018First overtone frequency of a closed pipe of length $l_1$ is equal to the second harmonic frequency of an open pipe of length $l_2$. The ratio $\frac{l_1}{l_2}$ is equal toA$\frac{3}{4}$B$\frac{4}{3}$C$\frac{3}{2}$D$\frac{2}{3}$Check AnswerClear SelectionReveal AnswerShow Explanation