A) \[mgl\,\,(1-\cos \theta )\]
B) \[0.5\,\,mgl\]
C) \[mgl\]
D) \[2\,\,mgl\]
Correct Answer: A
Solution :
In the equilibrium position energy is in the form of kinetic energy. Height of bob at maximum angular displacement is \[h=l-l\cos \theta \] \[=l(1-\cos \theta )\] Also \[PE=KE\] \[mgh=mgl(1-\cos \theta )\]You need to login to perform this action.
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