(Radius of earth \[=6.4\times {{10}^{6}}m\]) |
A) \[1.6\times {{10}^{6}}m\]
B) \[6.4\times {{10}^{6}}m\]
C) \[9.0\times {{10}^{6}}m\]
D) \[2.6\times {{10}^{6}}m\]
Correct Answer: D
Solution :
\[\frac{GM}{{{(R+h)}^{2}}}=\frac{GM}{2{{R}^{2}}}\] \[R+h=\sqrt{2}R\] \[h=(\sqrt{2}-1)R\] \[\simeq 2.6\times {{10}^{6}}m\]You need to login to perform this action.
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