A) Increase by 225%
B) decrease by 44%
C) Decrease by 56%
D) increase by 125%
Correct Answer: C
Solution :
[c] % change \[=\frac{\left[ \frac{G\left( 2{{m}_{1}} \right)\left( 2{{m}_{2}} \right)}{{{\left( 3r \right)}^{2}}}-\frac{G{{m}_{1}}{{m}_{2}}}{{{r}^{2}}} \right]}{\frac{G{{m}_{1}}{{m}_{2}}}{{{r}^{2}}}}\times 100\] \[\frac{\frac{4}{9}-1}{1}\times 100=-56%\] -ve sign indicates that force of attraction decreases.
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