AIIMS 2018 Physics Uniform Circular Motion MCQ Question

In uniform circular motion, an object moves along a circular path at a constant speed, which means the magnitude of its velocity remains constant; however, the direction of the velocity vector continuously changes. This change in direction results in centripetal acceleration, which is directed towards the center of the circle and has a constant magnitude given by the formula $a_c = \frac{v^2}{r}$, where $v$ is the tangential speed and $r$ is the radius of the circular path. Options B, C, and D are not applicable as they do not accurately reflect the nature of acceleration in uniform circular motion.