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The change in the value of g at a height...

The change in the value of `g` at a height `h` above the surface of the earth is the same as at a depth d below the surface of earth. When both `d` and `h` are much smaller than the radius of earth, then which one of the following is correct?

A

` x = h`

B

`x = 2h`

C

`x = (h)/(2)`

D

`x = h^(2)`

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