A) \[\frac{2GM}{9{{a}^{2}}}\]
B) \[\frac{GM}{3{{a}^{2}}}\]
C) \[\frac{GM}{9{{a}^{2}}}\]
D) \[\frac{2GM}{3{{a}^{2}}}\]
Correct Answer: B
Solution :
We use gauss's Law for gravitation \[g.4\pi {{r}^{2}}=\](Mass enclosed)\[4\pi G\] \[g=\frac{3M4\pi G}{4\pi {{(3a)}^{2}}}\]\[=\frac{MG}{3{{a}^{2}}}\] Option [b]You need to login to perform this action.
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