Question

What is Resonance ?________________​

Answer 1

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Resonance describes the phenomenon of increased amplitude that occurs when the frequency of a periodically applied force (or a Fourier component of it) is equal or close to a natural frequency of the system on which it acts.

Answer 2

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Resonance is the ability of system to move its pi electrons in the system. The delocalized electron when show movement contributing structures are prepared , this structures are called as resonating structures.

✰ Example :

• Benzene shows resonance.

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Resonance phenomena occur with all types of vibrations or waves:

• Mechanical resonance

• Acoustic resonance

• Electromagnetic resonance

• Nuclear magnetic resonance (NMR)

• Electron spin resonance (ESR)

• Resonance of quantum wave functions.