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Question: Answered & Verified by Expert
3 particles each of mass $m$ are kept at vertices of an equilateral triangle of side $L$. The gravitational field at centre due to these particles is
PhysicsGravitationJEE Main
Options:
  • A Zero
  • B $\frac{3 G M}{L^2}$
  • C $\frac{9 G M}{L^2}$
  • D $\frac{12}{\sqrt{3}} \frac{G M}{L^2}$
Solution:
2396 Upvotes Verified Answer
The correct answer is: Zero
Due to three particles net intensity at the centre
$I=I_A+I_B+I_C=0$

because out of these three intensities one equal in magnitude and the angle between each other is $120^{\circ}$.

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