Which of the following is responsible for the rotation of the oscillation plane of Foucault's pendulum?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Coriolis force.
The Coriolis force is responsible for the rotation of the oscillation plane of Foucault's pendulum. This force arises due to the Earth's rotation and affects the motion of the pendulum. As the pendulum swings, the Coriolis force causes its plane of oscillation to gradually rotate. This rotation is more noticeable at the poles and less so at the equator. The Foucault pendulum thus demonstrates the Coriolis effect, providing evidence of the Earth's rotational movement.