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

    $d = \frac{{3h}}{2}$

  • B

    $d = \frac{h}{2}$

  • C

    $d = h$

  • D

    $d =2\, h$

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