JAMB Physics 2017 Objective — Question 25

Question 25 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2017 Objective paper, with the correct answer and a full explanation.

Why do soldiers march disorderly while crossing a bridge?

A. A. To prevent resonance on the bridgeCorrect
B. B. To set the bridge into resonance
C. C. To make the bridge collapse
D. D. To spread their weight evenly on the bridge

Explanation

Breaking marching step prevents resonance, which could otherwise build up and collapse the bridge.

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