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An air column in a closed pipe will be in resonance with a vibrating tuning fork of frequency 264 Hz, if the length of the column (in cm) is: ( the velocity of the sound in air is 340 m/s).
 

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Important Questions on Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns

EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 21
A cylindrical resonance tube, open at both ends, has a fundamental frequency n in air. Half of the length of the tube is dipped vertically in water. The fundamental frequency of the air column is now:
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 22
A pipe closed at one end produces a fundamental frequency of 484 Hz. This pipe is cut into two equal parts. The fundamental frequencies produced by these parts will be:
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 23
In a closed organ pipe, the fundamental frequency is n. The ratio of frequencies of the next three overtones is:
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 24
An open pipe is suddenly closed at one end with the result that the frequency of third harmonic of the closed pipe is found to be higher by 100 Hz than the fundamental frequency of the open pip is:
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 25
The frequencies of the first overtone of a closed and an open organ pipe are equal. The lengths of the pipes are in the ratio:
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 26

The fundamental frequency of an open organ pipe is 300 Hz. The first overtone of this pipe is the same as the first overtone of a closed organ pipe. If the speed of sound be 330 ms-1 then the length of the closed organ pipe is:

MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 27
An open pipe resonates in its second harmonic with frequency f1. One end of the pipe is closed and the frequency is slowly raised until this pipe resonates in its n th harmonic with frequency f2. Then:
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 28
An open pipe of length 33 cm resonates with frequency of 1000 Hz . If the speed of sound is 330 m/s, then this frequency is: