A student determines the velocity of sound with the help of a closed organ pipe. If the observed length for fundamental frequency is $24.7 m$, the length for third harmonic will be .... $cm$
Easy
Download our app for free and get started
(a) ${l_2} = 3{l_1} = 3 \times 24.7 = 74.1\,cm$
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1Two engines pass each other moving in opposite directions with uniform speed of $30\,m/s$ . One of them is blowing a whistle of frequency $540\,Hz.$ Calculate the frequency heard by driver of second engine before they pass each other ... $Hz$. Speed of sound is $330\,m/sec$View Solution
- 2An observer standing near the sea shore observes $54$ waves per minute. If the wavelength of the water wave is $10m$ then the velocity of water wave is .... $ms^{-1}$View Solution
- 3Two speakers connected to the same source of fixed frequency are placed $2.0 m $ apart in a box. A sensitive microphone placed at a distance of $4.0m$ from their midpoint along the perpendicular bisector shows maximum response. The box is slowly rotated until the speakers are in line with the microphone. The distance between the midpoint of the speakers and the microphone remains unchanged. Exactly five maximum responses are observed in the microphone in doing this. The wavelength of the sound wave is .... $m$View Solution
- 4A resonating air column shows resonance with a tuning fork of frequency $256\, Hz$ at column lengths $33.4\, cm$ and $101.8\, cm$. The speed of sound in air is ...... $ms^{-1}$View Solution
- 5Two persons $A$ and $B$, each carrying a source of sound of frequency $n$, are standing a few metres apart in a quiet field. $A$ starts moving towards $B$ with a speed $u$. If $v$ is the speed of sound, the number of beats heard per second by $A$ will beView Solution
- 6If separation between screen and source is increased by $2\%$ what would be the effect on the intensityView Solution
- 7There are three sources of sound of equal intensities with frequencies $101, 103$ and $106\, Hz$. What is the beat frequency heard if all are sounded simultaneously ... $Hz$?View Solution
- 8The ratio of intensities between two coherent soud sources is $4 : 1$. The differenmce of loudness in $dB$ between maximum and minimum intensities when they interfere in space is:View Solution
- 9View SolutionWater waves are
- 10A stretched string of length $l,$ fixed at both ends can sustain stationary waves of wavelength $\lambda ,$ given byView Solution