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Assertion: soldiers are asked to break s...

Assertion: soldiers are asked to break steps while crossing the bridge.
Reason: The frequency of marching may be equal to the natural frequency of bridge and may lead to resonance which can break the bridge.

A

If both A and R are true and R is the correct explanation of A.

B

If both A and R are true but R is not the correct explanation of A.

C

If A is true but R is false

D

If A is false but R is true.

Text Solution

Verified by Experts

The correct Answer is:
A
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