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A person blows into open-end of a long pipe. As a result, a high pressure pulse of air travels down the pipe. When this pulse reaches the other end of the pipe,

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Important Questions on Sound Waves

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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
The fundamental frequency in an open organ pipe is equal to the third harmonic of closed organ pipe. If the length of the closed organ pipe is 20 cm, the length of the open organ pipe is
MEDIUM
Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
If sound travels in air with the speed of 340 m s-1, then the number of tones present in an open organ pipe of length 2 m for a maximum frequency of 1200 Hz, are
EASY
Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
The ratio of frequencies of fundamental harmonic produced by an open pipe to that of closed pipe having the same length is:
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
A resonance tube is old and has a jagged end. It is still used in the laboratory to determine the velocity of sound in air. A tuning fork of frequency 512 Hz produces first resonance when the tube is filled with water to a mark 11 cm below a reference mark, near the open end of the tube. The experiment is repeated with another fork of frequency 256 Hz which produces first resonance when water reaches a mark 27 cm below the reference mark. The velocity of sound in air, obtained in the experiment, is close to
MEDIUM
Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
A pipe open at both ends has a fundamental frequency f in air. The pipe is dipped vertically in water so that half of it is in water. The fundamental frequency of the air column is now:
MEDIUM
Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
A closed organ pipe has a fundamental frequency of 1.5 kHz. The number of overtones that can be distinctly heard by a person with this organ pipe will be (Assume that the highest frequency a person can hear is 20,000 Hz).
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
An organ pipe 40 cm long is open at both ends. The speed of sound in air is 360 m s-1. The frequency of the second harmonic is _________ Hz.
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
The fundamental frequency of an air column in a pipe closed at one end is 100 Hz. If the same pipe is open at both the ends, the frequencies produced in Hz are
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column

Show that only odd harmonics are present as overtones in the case of an air column vibrating in a pipe closed at one end.

EASY
Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
Two nearest harmonics of an organ pipe open at both the ends are 200Hz and 240Hz The fundamental frequency is
HARD
Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
In an experiment, to measure the speed of sound by a resonating air column, a tuning fork of frequency 500 Hz is used. The length of the air column is varied by changing the level of water in the resonance tube. Two successive resonances are heard at air columns of length 50.7cm and 83.9cm. Which of the following statements is (are) true?
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
A cylindrical tube, open at both the ends has fundamental frequency n . If one of the ends is closed, the fundamental frequency will become
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second overtone of an organ pipe open at both the ends. The length of the organ pipe open at both the ends is
EASY
Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
An air column, closed at one end and open at the other, resonates with a tuning fork when the smallest length of the column is 50  cm . The next larger length of the column resonating with the same tuning fork is:
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
The end correction of a resonance column is 1 cm. If the shortest length resonating with the tuning fork is 10 cm, the next resonating length should be
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
A pipe of length 85 cm is closed from one end. Find the number of possible natural oscillations of air column in the pipe whose frequencies lie below 1250 Hz. The velocity of sound in air is 340 m/s.
MEDIUM
Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
A pipe of 1 m length is closed at one end. Taking the speed of sound in air as 320 m s-1, the air column in the pipe cannot resonate for the frequency in Hz
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
Tube A has both ends open while tube B has one end closed. Otherwise, they are identical. The ratio of fundamental frequency of tube A and B is,
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
The two nearest harmonics of a tube closed at one end and open at other end are 220 Hz and 260 Hz. What is the fundamental frequency of the system?
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Physics>Oscillations and Waves>Sound Waves>Formation of Standing Waves in an Air Column
The second overtone of an open organ pipe has the same frequency as the first overtone of a closed pipe which is  L meter long. The length of the open pipe will be