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The time period of oscillation of a simple pendulum of length 2r on the surface of earth
The time period of oscillation of a simple pendulum of length 2r on the surface of earth pictures 5
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The time period of oscillation of a simple pendulum of length 2r on the surface of
The time period of oscillation of a simple pendulum of length 2r on the surface of earth
the time period of oscillation of a simple pendulum of length 2r on the surface of earth is about
