Define resonance???
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Answer:
Resonance
When the driving frequency matches the natural frequency of a material, causing an increase in amplitude of the oscillations.
E.g. when seismic wave frequencies matches that of concrete buildings, they sway violently due to an increase in amplitude of the oscillations.
resonance...you mean magnetic resonance? When you have the atoms of a substance and you place them in a magnetic field, they start to resonance with the frequency of the inducted magnetic field and they tend to orientate with the direction of the field.
I think it's when you get alot of instuments together. The sound that it makes all together.
could be wrong.
Structural resonance? This is when a compound has two or more valid electron dot formulas that have the same number of electron pairs for a molecule or ion. For example, nitrogen dioxide, which has a double bond and a single bond connecting the two oxygens to the one nitrogen. The double bond can be written on the right side or on the left side and the single bond can be written on either side also, meaning that nitrogen dioxide has two resonance structures. What is actually happening is the single and double bonds are actually switching places rapidly while the molecule is in existence. Your resonance structures for nitrogen dioxide would look like this: O=N--O and O--N=O.
consider asimple pendulum,its time periodT is given by
T=2pisqrt(l/g). this is called its natural time period. if we apply periodic impulses on the pendulum at time intervals of T(when the pendulum is at its extreme posion and on the point of returning), then the amplitude of the pendulum continuously increases and becomes large.i.e,when the time periods of the periodic applied impulse is equal to the natural period of the pendulum,the effect on the pendulum is large. the phenomenon is called resonance.
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