LIVE Course for free

Rated by 1 million+ students
Get app now
+1 vote
in Physics by (67.5k points)

An open pipe is suddenly closed at one end with the result that the frequency of the third harmonic of the closed pipe is found to be higher by 100 Hz than the fundamental frequency of the open pipe. What is the fundamental frequency of the open pipe :–

(a) 200 Hz 

(b) 100 Hz

(c) 0 Hz 

(d) 400 Hz

1 Answer

+3 votes
by (78.0k points)
selected by
Best answer

Correct Option (a) 200 Hz 


Fundamental frequency of open pipe, v = V/2L
Frequency of thrid harmonic of closed pipe = v' = 3V/4L

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.