The first overtone frequency of an open organ pipe is equal to the fundamental frequency of a closed organ pipe. If the length of the closed organ pipe is 20 cm. The length of the open organ pipe is ______ cm.
← JEE Main 2022 · 25 Jun · Shift 1
PhysicsInteger+4 / -1Question 55 of 90
JEE Main 2022 · 25 Jun · Shift 1, Physics question 55
Answer and worked solution
Official answer: 80
Frequencies. Open pipe first overtone ; closed pipe fundamental .
Equal. cm.
Answer: 80
Topics:Organ pipes and resonance