A) \[2\alpha \,\Delta t\]
B) \[\alpha \,\Delta t\]
C) \[\frac{\alpha \,\Delta t}{2}\]
D) \[\frac{\,\Delta t}{\alpha }\]
Correct Answer: A
Solution :
Moment of inertia of a rod \[I=\frac{M{{\lambda }^{2}}}{12}\] \[dI=\frac{M}{12}2\lambda \,d\lambda \] \[\frac{dI}{I}=2\frac{d\lambda }{\lambda }=2\alpha \Delta t\]You need to login to perform this action.
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