172814 Wire having tension $225 \mathrm{~N}$ produces six beats per second when it is tuned with a fork. When tension changes to $256 \mathrm{~N}$, it is tuned with the same fork, the number of beats remain unchanged. The frequency of the fork will be

172815 A source of unknown frequency gives 4 beats $\mathrm{s}^{-1}$ when sounded with a source of known frequency $250 \mathrm{~Hz}$. The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency $513 \mathrm{~Hz}$. The unknown frequency is

172817 A note has a frequency $128 \mathrm{~Hz}$. The frequency of a note two octaves higher than it is

172818 Two identical piano wires have a fundamental frequency of 600 cycle per second when kept under the same tension. What fractional increase in the tension of one wires will lead to the occurrence of 6 beats per second when both wires vibrate simultaneously?

172819 Two sources $A$ and $B$ are sending notes of frequency $680 \mathrm{~Hz}$. A listener moves from $A$ and $B$ with a constant velocity $u$. If the speed of sound in air is $340 \mathrm{~ms}^{-1}$, what must be the value of $u$ so that he hears 10 beats per second?

172814 Wire having tension $225 \mathrm{~N}$ produces six beats per second when it is tuned with a fork. When tension changes to $256 \mathrm{~N}$, it is tuned with the same fork, the number of beats remain unchanged. The frequency of the fork will be

172815 A source of unknown frequency gives 4 beats $\mathrm{s}^{-1}$ when sounded with a source of known frequency $250 \mathrm{~Hz}$. The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency $513 \mathrm{~Hz}$. The unknown frequency is

172817 A note has a frequency $128 \mathrm{~Hz}$. The frequency of a note two octaves higher than it is

172818 Two identical piano wires have a fundamental frequency of 600 cycle per second when kept under the same tension. What fractional increase in the tension of one wires will lead to the occurrence of 6 beats per second when both wires vibrate simultaneously?

172819 Two sources $A$ and $B$ are sending notes of frequency $680 \mathrm{~Hz}$. A listener moves from $A$ and $B$ with a constant velocity $u$. If the speed of sound in air is $340 \mathrm{~ms}^{-1}$, what must be the value of $u$ so that he hears 10 beats per second?

172814 Wire having tension $225 \mathrm{~N}$ produces six beats per second when it is tuned with a fork. When tension changes to $256 \mathrm{~N}$, it is tuned with the same fork, the number of beats remain unchanged. The frequency of the fork will be

172815 A source of unknown frequency gives 4 beats $\mathrm{s}^{-1}$ when sounded with a source of known frequency $250 \mathrm{~Hz}$. The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency $513 \mathrm{~Hz}$. The unknown frequency is

172817 A note has a frequency $128 \mathrm{~Hz}$. The frequency of a note two octaves higher than it is

172818 Two identical piano wires have a fundamental frequency of 600 cycle per second when kept under the same tension. What fractional increase in the tension of one wires will lead to the occurrence of 6 beats per second when both wires vibrate simultaneously?

172819 Two sources $A$ and $B$ are sending notes of frequency $680 \mathrm{~Hz}$. A listener moves from $A$ and $B$ with a constant velocity $u$. If the speed of sound in air is $340 \mathrm{~ms}^{-1}$, what must be the value of $u$ so that he hears 10 beats per second?

172814 Wire having tension $225 \mathrm{~N}$ produces six beats per second when it is tuned with a fork. When tension changes to $256 \mathrm{~N}$, it is tuned with the same fork, the number of beats remain unchanged. The frequency of the fork will be

172815 A source of unknown frequency gives 4 beats $\mathrm{s}^{-1}$ when sounded with a source of known frequency $250 \mathrm{~Hz}$. The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency $513 \mathrm{~Hz}$. The unknown frequency is

172817 A note has a frequency $128 \mathrm{~Hz}$. The frequency of a note two octaves higher than it is

172818 Two identical piano wires have a fundamental frequency of 600 cycle per second when kept under the same tension. What fractional increase in the tension of one wires will lead to the occurrence of 6 beats per second when both wires vibrate simultaneously?

172819 Two sources $A$ and $B$ are sending notes of frequency $680 \mathrm{~Hz}$. A listener moves from $A$ and $B$ with a constant velocity $u$. If the speed of sound in air is $340 \mathrm{~ms}^{-1}$, what must be the value of $u$ so that he hears 10 beats per second?

172814 Wire having tension $225 \mathrm{~N}$ produces six beats per second when it is tuned with a fork. When tension changes to $256 \mathrm{~N}$, it is tuned with the same fork, the number of beats remain unchanged. The frequency of the fork will be

172815 A source of unknown frequency gives 4 beats $\mathrm{s}^{-1}$ when sounded with a source of known frequency $250 \mathrm{~Hz}$. The second harmonic of the source of unknown frequency gives five beats per second when sounded with a source of frequency $513 \mathrm{~Hz}$. The unknown frequency is

172817 A note has a frequency $128 \mathrm{~Hz}$. The frequency of a note two octaves higher than it is

172818 Two identical piano wires have a fundamental frequency of 600 cycle per second when kept under the same tension. What fractional increase in the tension of one wires will lead to the occurrence of 6 beats per second when both wires vibrate simultaneously?

172819 Two sources $A$ and $B$ are sending notes of frequency $680 \mathrm{~Hz}$. A listener moves from $A$ and $B$ with a constant velocity $u$. If the speed of sound in air is $340 \mathrm{~ms}^{-1}$, what must be the value of $u$ so that he hears 10 beats per second?