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Question 30748
JEE Physics · Hard

Gravitation: Field Between Two Masses MCQ

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Field Between Two MassesHardQuestion 30748

Question

Masses M and 4M are 3 m apart. Where is the gravitational field zero between them?
  1. A
    1 m from M
    Correct
  2. B
    1.5 m from M
  3. C
    2 m from M
  4. D
    2.5 m from M

Correct answer

1 m from M

Explanation

GM/x² = G(4M)/(3−x)². 1/x² = 4/(3−x)². (3−x)² = 4x². 3−x = 2x → x = 1 m from M.

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