A) \[1.5\,kg\]
B) \[9\text{ }kg\]
C) \[0.9\text{ }kg\]
D) \[0.5\text{ }kg\]
Correct Answer: B
Solution :
\[Mg=\left( \frac{Ay}{\ell } \right)\Delta \ell \] \[\frac{\Delta \ell }{\ell }=\alpha \Delta T\] \[Mg=(Ay)\alpha \Delta T=2\pi \] It is closest to 9.You need to login to perform this action.
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