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Per NCERT §7.6, the value of g at the CENTRE of the Earth (assuming uniform density) is which?
AMaximum
BZero
CEqual to surface g
DInfinite
Answer & Solution
Correct answer: B. Zero
NCERT §7.6 eqn 7.19: g(d=R_E) = 0 at the centre because there is no mass interior to that point.
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