A) 4 cm
B) 3 cm
C) 2 cm
D) 1 cm
Correct Answer: B
Solution :
\[F=kx\] Þ \[mg=kx\] Þ \[m\propto kx\] Hence \[\frac{{{m}_{1}}}{{{m}_{2}}}=\frac{{{k}_{1}}}{{{k}_{2}}}\times \frac{{{x}_{1}}}{{{x}_{2}}}\] Þ \[\frac{4}{6}=\frac{k}{k/2}\times \frac{1}{{{x}_{2}}}\] \[\Rightarrow \]\[{{x}_{2}}=3\,cm\].You need to login to perform this action.
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