Question : The work done by the string of a simple pendulum during one complete oscillation is equal to
Option 1: The total energy of a pendulum
Option 2: Kinetic energy of the pendulum
Option 3: Potential energy of the pendulum
Option 4: Zero
Correct Answer: Zero
Solution : The correct option is Zero.
The work done by a basic pendulum's string during one complete oscillation is zero. This is because the tension in the string is always perpendicular to the bob's movement. A force's work is equal to its force multiplied by its displacement, and because the force and displacement are always perpendicular, the work done is always zero.
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