Question

disadvantage of resonance.....​

Answer 1

Answer:

(1) A colunmn of soldiers marching in regular step on a narrow and structuraly flexible bridge can set it into dangerously large amplitude oscillations. The bridge may even collapse at the resonance.

(2)Structural resonance of a suspension bridge induced by the winds can lead to its catastrophic collapse. Several early suspension bridges were destroyed by strucrural resonance induced by modest winds.

(3) Vibrations of a motor or engine can induce resonant vibrations in its supporting structures if their natural frequency is close to that of the vibrations of the engine. A common example is the rating sound of a bus body when the engine is left idling.

Answer 2

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The disadvantages of resonance are as follows: A negative effect of resonance could be the effect of waves hitting a rock face. The vibration of kinetic energy from the wave resonates through the rock face causing cracks and eventually great slabs of the cliff fall into the sea.