A) \[M\]
B) \[3M\]
C) \[6M\]
D) \[9M\]
Correct Answer: C
Solution :
[a] \[\Delta l=\frac{FL}{AY}\] \[\frac{{{(\Delta l)}_{A}}}{{{(\Delta l)}_{B}}}=\left( \frac{{{F}_{A}}}{{{F}_{B}}} \right)\left( \frac{{{L}_{A}}}{{{L}_{B}}} \right)\left( \frac{{{A}_{B}}}{{{A}_{A}}} \right)\left( \frac{{{Y}_{B}}}{{{Y}_{A}}} \right)\] \[=\left( \frac{KM}{3M} \right)(r){{\left( \frac{1}{2r} \right)}^{2}}\left( \frac{1}{3r} \right)=\frac{K}{36{{r}^{2}}}=\frac{1}{6{{r}^{2}}}\](given) K=6 Mass of block P=6MYou need to login to perform this action.
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