A) \[d=\frac{3h}{2}\]
B) \[d=\frac{h}{2}\]
C) \[d=h\]
D) \[d=2h\]
Correct Answer: D
Solution :
[d] Variation of g with altitude is, \[gh=g\left[ 1-\frac{2h}{R} \right];\] variation of g with depth is, \[{{g}_{d}}=g\left[ 1-\frac{d}{R} \right]\] Equating \[{{g}_{h}}\] and \[{{g}_{d}},\] we get \[d=2h\]
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