![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Chladni_plate_10.jpg/640px-Chladni_plate_10.jpg&w=640&q=50)
Chladni's law
Law in quantum mechanics / From Wikipedia, the free encyclopedia
Chladni's law, named after Ernst Chladni, relates the frequency of modes of vibration for flat circular surfaces with fixed center as a function of the numbers m of diametric (linear) nodes and n of radial (circular) nodes. It is stated as the equation
where C and p are coefficients which depend on the properties of the plate.[1]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Chladni_plate_10.jpg/640px-Chladni_plate_10.jpg)
For flat circular plates, p is roughly 2, but Chladni's law can also be used to describe the vibrations of cymbals, handbells, and church bells in which case p can vary from 1.4 to 2.4.[2] In fact, p can even vary for a single object, depending on which family of modes is being examined.