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BITSAT Physics Gravitation 2024 BITSAT 2024 (Memory Based Paper 1)

BITSAT Physics Question (2024) — Solution

Question

For a particle inside a uniform spherical shell, the gravitational force on the particle is

Options

  1. A. infinite
  2. B. zero
  3. C. -G m_1 m_2 r^2
  4. D. Gm _1 ~m _2 r ^2

Answer

B. zero

Step-by-step solution

Various regions of spherical shell attract the point mass inside it in various directions. These forces cancel each other completely. Therefore the gravitational force on the particle is zero.

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