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In both the figure all other factors are...

In both the figure all other factors are same, except that in figure (i) AB is rough and BC is smooth while in figure (ii) AB is smooth and BC is rough. The kinetic energy of the ball on reaching the bottom

A

Is same in both the cases

B

Is greater in case (i)

C

Is greater in case (ii)

D

Information insufficient

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The correct Answer is:
B
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