Manipal MET2014PhysicsWaves and Sound
An open organ pipe resonated with frequency f₁ and 2nd harmonic. Now, one end is closed and the frequency is slowly increased, then it resonates with frequency f₂ and n th harmonic then,
Options
- An=3, f₂= 3 4 f₁
- Bn=5, f₂= 3 4 f₁
- Cn=3, f₂= 5 4 f₁
- Dn=5, f₂= 5 4 f₁
Correct answer
D. n=5, f₂= 5 4 f₁
Step-by-step solution
( aligned f₁ & = 1 l B f₂ & = n 4 l B f₁ f₂ = 4 n f₂= n_ f₁ 4 aligned )