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In physics, the relatively large selective response of an object or a system that vibrates in step with an externally applied vibration .
Acoustical resonance is the vibration induced in a string of a given pitch when a note of the same pitch is produced nearby, in the sound box of an instrument such as a guitar, or in the mouth or nasal cavity when speaking. Mechanical resonance, such as that produced in a bridge by wind or by marching soldiers, can eventually produce wide swings great enough to cause the bridge's destruction. Resonance in frequency-sensitive electrical Magnetic resonance occurs when electrons or atomic nuclei respond to the application of magnetic fields by emitting or absorbing electromagnetic radiation . See also nuclear magnetic resonance .
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[c mediumvioletred] (as used in expressions)
magnetic resonance
{{link=magnetic resonance imaging">magnetic resonance imaging
nuclear magnetic resonance
electron spin resonance
electron paramagnetic resonance EPR