Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
881 views
in Waves by (35.6k points)
closed by

1. Sound produced by an open pipe contains:

  • Fundamental component only
  • Odd harmonics only
  • All the harmonics
  • Even harmonics only

2. A pipe 30 cm long is open at both ends. Which harmonic mode of the pipe is resonantly exerted by a 1.1 kHz source?

3. Will resonance with the same source be observed if one end of the pipe is closed? (Take the speed of sound in air to be 330 ms-1)

1 Answer

+1 vote
by (33.8k points)
selected by
 
Best answer

 1. All the harmonics.

2. We know frequency of oscillation in the Pipe, f = \(\frac{nV}{2L}\)

Substituting the values v, L and f we get

n = 2 means that the oscillation is second harmonics.

3. The condition for second harmonics in closed pipe is

The frequency required for resonance in a closed pipe is 825 Hz. Hence we do not get resonance at 1.1 Khz.

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.

...