The value of g at the centre of Earth is MCQ with Answer and Explanation

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The value of g at the centre of Earth is

A. Infinite

B. 4.9 m/s²

C. 9.8 m/s²

D. Zero

Answer: Option D

Solution (By JKSSB Mock Tests)

g decreases with depth: g' = g(1 - d/R). At centre d=R, g'=0. Weightless at centre. At poles g=9.83, equator 9.78. At surface it's maximum.

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