A) 1.0
B) 0.75
C) 0.50
D) 0.25
Correct Answer: D
Solution :
\[\frac{{{M}_{A}}}{{{M}_{B}}}={{\left( \frac{{{r}_{B}}}{{{r}_{A}}} \right)}^{2}}\because {{r}_{A}}=2{{r}_{B}}\] \[\therefore \frac{{{r}_{B}}}{{{r}_{A}}}=\frac{1}{2}\] \[=\frac{1}{{{(2)}^{2}}}\] \[=\frac{1}{4}=.25\]
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