What is the direction of the gravitational field at a point on the axis of a uniform circular ring?
Along x axis
along y axis
Perpendicular to the axis of the ring
Parallel to the axis of the ring
The gravitational field at a point on the axis of a uniform circular ring is parallel to the axis of the ring because the perpendicular components of the gravitational field due to each element of the ring along the axis cancel out each other.
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