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Question

The gravitational field strength inside a hollow sphere (mass M and radius R ) at a distance r from centre is :
  1. Zero
  2. GMr2
  3. GMr2
  4. GMr

A
Zero
B
GMr2
C
GMr2
D
GMr
Solution
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The gravitational field strength inside a hollow sphere is zero, because'if you take imaginary sphere inside the hollow sphere then mass contain inside the sphere will be zero.
The correct option is A.

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