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Dependence of intensity of gravitational...

Dependence of intensity of gravitational field `(E)` of earth with distance `(r)` from centre of earth is correctly represented by

A

B

C

D

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The correct Answer is:
A
Gravitational field intensity at a point inside the solid sphere is directly proportional to distance point from the centre and for outside points it is inversely proportional to square of the distance. Radial outward direction is positive and field intensity is towards centre, hence negative. Option (a) is correct.
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