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The earth is an approximate sphere. If t...

The earth is an approximate sphere. If the interior contained matter which is not of the same density everywhere, then on the surface of the earth, the acceleration due to gravity  ? 

A

will be directed towards the centre but not the same everywhere

B

will have the same value everywhere but not directed towards the centre

C

will be same everywhere in magnitude directed towards the centre

D

cannot be zero at any point

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • The centre of mass of an extended body on the surface of the earth and its centre of gravity

    A
    are always at the same point for any size of the body
    B
    are always at the same point only for spherical bodies
    C
    can never be at the same point
    D
    is close to each other for objects, say of sizes less than 100 m

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