Question

# A body is moving along the circumference of a circle of radius $$R$$ and completes half of the revolution. Then, the ratio of its displacement to distance is:

A
π:2
B
2:1
C
2:π
D
1:2

Solution

## The correct option is C $$2:\pi$$Displacement is the minimum distance between the start and end point. Hence, the displacement in this case will be the diameter of the circle, i.e., $$2R$$.Distance is the length of path covered by the particle/object. Here, the distance will be $$\pi R$$.Therefore, the ratio of displacement to distance is $$2: \pi$$Physics

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