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A tube closed at one end and containing air is excited. It produces the fundamental note of frequency 512 Hz. If the same tube is open at both the ends the fundamental frequency that can be produced is ____.
1024 Hz
512 Hz
256 Hz
128 Hz
A closed pipe and an open pipe have their first overtones identical in frequency. Their lengths are in the ratio ____.
1 : 2
2 : 3
3 : 4
4 : 5
The first overtone in a closed pipe has a frequency ____.
same as the fundamental frequency of an open tube of same length
twice the fundamental frequency of an open tube of same length
same as that of the first overtone of an open tube of same length
None of the above
An empty vessel is partially filled with water, then the frequency of vibration of air column in the vessel ____.
remains same
decreases
increases
first increases then decreases
It is desired to increase the fundamental resonance frequency in a tube which is closed at one end. This can be achieved by ____.
replacing the air in the tube by hydrogen gas
increasing the length of the tube
double the length of the tube
remains the closed end of the tube
An air column in a pipe, which is closed at one end, is in resonance with a vibrating body of frequency 166 Hz, if the length of the air column is ____.
2.00 m
1.50 m
1.00 m
0.50 m
If the velocity of sound in air is 350 m/s. Then the fundamental frequency of an open organ pipe of length 50 cm is ____.
350 Hz
175 Hz
900 Hz
750 Hz
The fundamental note produced by a closed organ pipe is of frequency The fundamental note produced by an open organ pipe of same length is of frequency ____.
If the velocity of sound in air is 336 m/s. The maximum length of a closed pipe that would produce a just audible sound is ____.
3.2 cm
4.2 m
4.2 cm
3.2 m
An organ pipe closed at one end vibrating in its first overtone and another pipe open at both ends vibrating in its third overtone are in resonance with a given tuning fork. The ratio of lengths of and is ____.
1 : 2
1 : 3
3 : 8
3 : 4
A resonance air column of length 20 cm resonates with a tuning fork of frequency 250 Hz. The speed of sound in air is ____.
300 m/s
200 m/s
150 m/s
75 m/s
A cylindrical tube, open at both ends, has a fundamental frequency in air. The tube is dipped vertically into water such that half of its length is inside water. The fundamental frequency of the air column now is ____.
Two closed organ pipes, when sounded simultaneously gave 4 beats per sec. If longer pipe has a length of 1m. Then length of shorter pipe is, (v = 300 m/s) ____.
185.5 cm
94.9 cm
90 cm
80 cm
A source of sound placed at the open end of a resonance column sends an acoustic wave of pressure amplitude inside the tube. If the atmospheric pressure is then the ratio of maximum and minimum pressure at the closed end of the tube is ____.
Two closed pipe produce 10 beats per second when emitting their fundamental nodes. If their length are in ratio of 25: 26. Then their fundamental frequency in Hz, are ____.
270, 280
260, 270
260, 250
260, 280
A closed organ pipe and an open organ pipe are tuned to the same fundamental frequency. What is the ratio of lengths?
1 : 2
2 : 1
2 : 3
4 : 3
Find the fundamental frequency of a closed pipe, if the length of the air column is 42 m. (speed of sound in air = 332 m/s) ____.
2 Hz
4 Hz
7 Hz
9 Hz
If v is the speed of sound in air then the shortest length of the closed pipe which resonates to a frequency n ____.
The frequency of fundamental tone in an open organ pipe of length 0.48 m is 320 Hz. Speed of sound is 320 m/s. Frequency of fundamental tone in closed organ pipe is ____.
153.8 Hz
160.0 Hz
320.0 Hz
143.2 Hz
If fundamental frequency of closed pipe is 50 Hz then frequency of 2nd overtone is ____.
100 Hz
50 Hz
250 Hz
150 Hz