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Mersenne's Law says the frequency of a vibrating string is inversely proportional to the square root of the mass per unit length but why not simply to the mass per unit length?
Wiki User
∙ 16y ago
Why not? Not to be overly terse . . . because it's NOT inversely proportional to the mass per unit length. It's inversely proportional to the SQUARE ROOT of the MPUL. If the fundamental frequency of a string were inversely proportional to its MPUL, then doubling the MPUL of the string would cut the fundamental frequency in half (that is, reduce it 50 percent). But we know from observation and analysis that that is not the case. If we double the MPUL of the string, then the fundamental frequency is reduced by about 29 percent, not 50 percent. To reduce the fundamental frequency of the string by half, we would have to quadruple the MPUL of the string!
Wiki User
∙ 16y ago
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What will happen to the loudness of a sound if the surface area of the vibrating body is decreased?
loudness is inversely proportional to the surface area so it increases when surface area decreases
How can electron emit radio photon Really are photons emitted only by electrons jumping from higher to lower energy levels?
The particle-like features of EM radiation at frequencies of radio waves are almost non-existent. It is far more useful to view such radiation as a vibrating EM-field instead of a photon of almost no energy. When doing so, you can see how a EM wave would result from electrons vibrating back and forth at at set frequency. By setting up an electronic oscillator that has a resonance at a radio wave frequency, you will get electrons vibrating at that frequency; and, from that, an EM wave of that frequency. > are photons emitted only by electrons jumping from higher to lower energy levels? No, there are many other ways to accomplish this.
What causes the compressions and rarefractions that make up sound waves?
vibrating surfaces. Vocal chords vibrate at a particular frequency to produce a particular tone. Violin stings, car engines, woofers,
How do you measure mechanical frequency?
I assume you mean measure the frequency of vibration of a mechanical system or part. You use a stroboscope, which is a light that flashes briefly and rapidly. You shine the light on the object and adjust the frequency of the strobe by turning a dial until the object stops moving. You then read the dial to determine the frequency. there are steps you have to take to avoid synchronizing to a subharmonic of the base frequency. For example, if the object is vibrating at 100Hz (10ms), running the strobe at 50hz will also stop the motion, as it will pick up every other cycle.
What is the frequency of 2 hertz wave?
It means something is oscillating or vibrating at 2 cycles every second.
If the frequency of the waves produced by a vibrating object increases how does the wavelength of the waves produced change?
The wavelength decreases. Frequency and wavelength are inversely related.
Is a string vibrating at the fundamental frequency the length of half the wavelength?
This question can't be answered as asked. A string vibrating at its fundamental frequency has nothing to do with the speed of the produced sound through air, or any other medium. Different mediums transmit sound at different speeds. The formula for wavelength is L = S/F, were L is the wavelength, S is the speed through the medium and F is the frequency. Therefore, the wavelength depends on the speed of sound through the medium and directly proportional to the speed and inversely proportional to the frequency.
What are the laws of vibrating strings?
Avibration in a string is a wave. Usually a vibrating string produces a sound whose frequency in most cases is constant. Therefore, since frequency characterizes the pitch, the sound produced is a constant note. Vibrating strings are the basis of any string instrument like guitar, cello, or piano. The speed of propagation of a wave in a string is proportional to the square root of the tension of the string and inversely proportional to the square root of the linear mass of the string.
How does frequency of a wave compare with the frequency of the source?
The frequency of a radio wave compares to the frequency of the vibrating electrons that make it because the frequency of a radio wave is proportional to the frequency of the vibrating electrons that make it.
What are the laws of string?
Avibration in a string is a wave. Usually a vibrating string produces a sound whose frequency in most cases is constant. Therefore, since frequency characterizes the pitch, the sound produced is a constant note. Vibrating strings are the basis of any string instrument like guitar, cello, or piano. The speed of propagation of a wave in a string is proportional to the square root of the tension of the string and inversely proportional to the square root of the linear mass of the string.
What is the effect on periodic time of doubling the mass of the vibrating systems?
there is no effect of mass on time period because mass and time period are inversely proportional
What is the function of bulb in frequency of ac mains by electrically vibrating rod?
to ensure circuit is complete and frequency is proportional to intencity and glowing bulb show intencity
What will happen to the loudness of a sound if the surface area of the vibrating body is decreased?
loudness is inversely proportional to the surface area so it increases when surface area decreases
What happen when frequency of a vibrating body becomes equal to its natural frequency?
When frequency of a vibrating body becomes equal to its natural frequency the body starts vibrating vigorously due to resonance.
Relationgship between frequency of notes and length of vibrating string?
Pitch is a subjective dimension of hearing. It is the sound quality most closely related to the frequency of a pure tone. High-frequency tones are perceived as being of high pitch while low-frequency tones are said to be of low pitch. The relationship between pitch and frequency is however, not a simple linear one. Frequncy measures how many waves pass a point in one second.
How does sound frequency change?
the frequency of a sound can change depending on how fast the source is vibrating
What factor determine's the pitch of sound?
Pitch is determined by sound wave frequency; how fast something is vibrating. High-pitched sounds are higher frequency meaning they are vibrating faster. Low pitch means they are vibrating slower.
