A) \[\sqrt{\frac{2GM}{R}}\]
B) \[\sqrt{\frac{2GM}{{{R}^{2}}}}\]
C) \[\sqrt{2g{{R}^{2}}}\]
D) \[\sqrt{\frac{2GM}{{{R}^{2}}}}\]
Correct Answer: A
Solution :
Escape velocity \[{{v}_{e}}=\sqrt{2gR}\] \[{{v}_{e}}=\sqrt{\frac{2GM}{{{R}^{2}}}R}\] \[(\because GM=g{{R}^{2}})\] \[{{v}_{e}}=\sqrt{\frac{2GM}{R}}\]You need to login to perform this action.
You will be redirected in
3 sec