1. Tardigrade
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  3. Physics
  4. A thin rod of length L is bent to form a semicircle. The mass of the rod is M. What will be the gravitational potential at the centre of the circle?

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Q. A thin rod of length $L$ is bent to form a semicircle. The mass of the rod is $M$. What will be the gravitational potential at the centre of the circle?

Solution:

Correct answer is (c) $-\frac{\pi G M}{L}$