kohekõlalisus
Kohekõlalisus refers to the phenomenon of sound resonance within a hollow object, often a musical instrument or a resonant cavity. This occurs when an external sound source causes the air inside the object to vibrate at its natural frequencies. These natural frequencies, also known as resonant frequencies, are determined by the object's size, shape, and the properties of the material it is made from. When the frequency of the external sound matches one of these resonant frequencies, the amplitude of the vibrations inside the object increases significantly, leading to a louder and more pronounced sound. This amplification is what we perceive as kohekõlalisus.
In musical instruments, kohekõlalisus is a crucial element for producing sound. For example, the body of a