A solid sphere of uniform density and mass M has radius 4 m. Its centre is at the origin…
Physics · JEE Advanced · NTA Exams — Gravitation
A solid sphere of uniform density and mass M has radius 4 m. Its centre is at the origin of the coordinate system. Two spheres of radii 1 m are taken out so, that their centres are at P (0, –2, 0) and Q (0, 2, 0), respectively. This leaves two spherical cavities. What is the gravitational field at the origin of the coordinate axes?
- \(\frac{31 G M}{1024}\)
- \(\frac{6 m}{1024}\)
- 31 GM
- zero
Answer
(D) zero
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