A question about resonant frequency

In summary, resonant frequency is the natural frequency at which an object or system vibrates with the greatest amplitude. It can be calculated using the equation f<sub>r</sub> = 1/(2π√(L*C)), and has a variety of applications in fields such as music, engineering, and medicine. It can affect the performance of a system by either causing damage or enhancing its function. Additionally, resonant frequency can change depending on the physical properties of the system.
  • #1
jebii
9
0
hello, I'm a first year science undergrad, currently learning about mechanics and waves and so on
there's this vine that's been going around, which shows someone playing a harp - here is the video in question; I personally find it quite beautiful and fascinating. Apparently the phenomena is caused by the camera shutter speed being in synch with the vibration of the string. Is this an example of resonant frequency, or is it something else entirely? Thanks.
 
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  • #2
It's a stroboscopic effect.
 
  • #3

1. What is resonant frequency?

Resonant frequency is the natural frequency at which an object or system vibrates with the greatest amplitude. It is determined by the physical properties of the object or system, such as its mass, stiffness, and damping.

2. How is resonant frequency calculated?

Resonant frequency can be calculated using the equation fr = 1/(2π√(L*C)), where fr is the resonant frequency, L is the inductance, and C is the capacitance of the system.

3. What are some real-world applications of resonant frequency?

Resonant frequency has many practical applications, such as in musical instruments, electrical circuits, and structural engineering. It is also used in medical devices, such as MRI machines, to create images of the body.

4. How does resonant frequency affect the performance of a system?

If a system is exposed to its resonant frequency, it can experience large vibrations, which can cause damage or failure. However, resonant frequency can also be utilized to enhance the performance of certain systems, such as in tuned circuits or musical instruments.

5. Can resonant frequency change?

Yes, resonant frequency can change depending on the physical properties of the system. For example, adding weight to an object can change its resonant frequency, as well as altering the stiffness or damping of a system.

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