If the change in the value of ' \( g \) ' at a height \( h \) above the surface of the earth is ...

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If the change in the value of ' \( g \) ' at a height \( h \) above the surface of the earth is the same as at a depth \( x \) below it, then (both \( x \) and \( h \) being much smaller than the radius of the earth)
[NCERT 1983; BHU 2002;
Kerala PET 2009]
(a) \( x=h \)
(b) \( x=2 h \)
(c) \( x=\frac{h}{2} \)
(d) \( x=h^{2} \)
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