A) \[d=2\,km\]
B) \[d=\frac{1}{2}\,km\]
C) \[d=\,1\,\,km\]
D) \[d=\frac{3}{2}\,km\]
Correct Answer: A
Solution :
[a] Above earth surface below earth surface |
\[g'=g\left( 1-\frac{2h}{{{R}_{e}}} \right)\] |
\[g'=g\left( 1-\frac{d}{{{R}_{e}}} \right)\] |
\[\Delta g'=g\frac{2h}{{{R}_{e}}}\] .(i) |
\[\Delta g=g\frac{d}{{{R}_{e}}}\] (ii) |
From (1) & (2) |
\[d=2h\] |
\[d=2\times 1\text{ }km\] |
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