Assertion : The soldiers marching on a suspended brids are advised to go of stape
Reason : frequency of marching step may match we the nature frequency of oscillation of bridge

Assertion : The soldiers marching on a suspended bridges are advised to go of steps Reason : frequency of marching step may match we the nature frequency of oscillation of bridge

(A) : The soldiers marching on a suspended bridge are advised to break their step. (R) : Frequency of marching steps may match with the natural frequency of oscillations of bridge.

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.

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.

Assertion : The amplitude of an oscillation pendulum decreases gradually with time Reason : The frequency of the pendulum decrease with time

Assertion : The ampliyude of an oscillation pendulum decreases gradually with time Reason : The frequency of the pendulum decrease with time