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Why are army troops not allowed to march in steps while crossing the bridge? |
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Answer» SOLUTION :`(i)` Soliders are not allowed to march on a bridge. The reason behind this is RESONACE. `(ii)` If the frequency of soliders MARCHING on a bridge, EQUALS the frequency of vibration of bridge, then the displacement of the bridges movement will be maximum resulting what we call as as Resonance. `(iii)` DUE to this resonance the bridge may get broken or get dameged. |
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