When an air column in a pipe open at both ends vibrates such that four antinodes and three nodes are formed,…

When an air column in a pipe open at both ends vibrates such that four antinodes and three nodes are formed, then the corresponding mode of vibration is
  1. first overtone
  2. second overtone
  3. fourth overtone
  4. third overtone

Solution

$\text { Since } \mathrm{L}=\frac{3 \lambda}{2} \text {, it is third harmonic or second overtone. }$

Asked in: MHT CET 2021 (23 Sep Shift 1)

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