Two pipes are each 50 cm in length. One of them is closed at one end while the other is open at both ends. The speed of sound in air is 340 m `s^(-1)`. The frequency at which both the pipes can resonate isA. 680 HzB. 510 HzC. 85 HzD. None of these

Two pipes are each 50 cm in length. One of them is closed at one end w

1.	Two pipes are each 50 cm in length. One of them is closed at one end while the other is open at both ends. The speed of sound in air is 340 m `s^(-1)`. The frequency at which both the pipes can resonate isA. 680 HzB. 510 HzC. 85 HzD. None of these
Answer» Correct Answer - D A pipe open only at one end and another one of equal length but open at both the ends have their fundamental frequencies `upsilon and 2upsilon` respectively. Again only odd harmonics are possible for a pipe open at one end whereas all second harmonics are possible for a pipe open at both ends. Thus, it is impossible to have a common frequency at which they can resonate.

Discussion

No Comment Found

Related InterviewSolutions

Sound waves of frequency `660 Hz` fal normally on a perfectly reflecting wall. The shortest distance from the wall at which the pair particles have maximum amplitude of vibration is ……………… meters.
Calculate the frequency of `2^(nd)` harmonic in an open organ pipe of length 34 cm if the velocity of sound is 340m/s.
What is the beat frequency, when two waves of frequency 450 Hz and 456 Hz are superposed?
Velocity of sound in a medium is 490m/s. two waves of wavelength 98 cm and 100 cm are superposed. Calculate the beat frequency.
Two sound sources emitting sound each of wavelength `lambda` are fixed at a given distance apart. A listener moves with a velocity `u` along the line joining the two suorces. The number of beats heard by him per second isA. `(2u)/lambda`B. `u/lambda`C. `u/(2lambda)`D. `lambda/u`
Two waves of wavelength 50 cm and 51 cm produce 12 beat/s . The speed of sound isA. 306 m/sB. 331 m/sC. 340 m/sD. 360 m/s
A standing wave having 3 nodes and 2 antinodes is formed between two atoms having a distance 1.21Å between them. The wavelength of the standing wave isA. 1.21 ÅB. 1.42ÅC. 6.05ÅD. 3.63Å
A vehicle, with a horn of frequency n is moving with a velocity of 30 m/s in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency `n + n_(1)`. Then (if the sound velocity in air is 300 m/s)A. `n_(1) = 10 n`B. `n_(1)=0`C. `n_(1)=0.1 n`D. `n_(1)=-0.1 n`
A vehicle with a horn of frequency n is moving with a velocity of 30m/s in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency n + n1. Then (if the sound velocity in air is 300 m/s)(a) n1 = 10 n (b) n1 = 0 (c) n1 = – 0.1 n (d) n1 = 0.1 n
Two organ pipes of lengths 65cm and70 cm respectively , are sounded simultaneosly. How many beats per second will be produced between the fundamental of the two pipes ? ( Velocity of sound ` = 330 m //s ) `

Two pipes are each 50 cm in length. One of them is closed at one end while the other is open at both ends. The speed of sound in air is 340 m `s^(-1)`. The frequency at which both the pipes can resonate isA. 680 HzB. 510 HzC. 85 HzD. None of these

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment