1.

In both the figures, all other factors are same, expect that in figure (i) AB is sufficiently rough andBC is smooth while in figure (ii) AB is smooth and BC is sufficiently rough. Kinetic energy of theball on reaching the bottomAВTITITIVITTIITTITE2) is greater in case (1)is same in both the cases3)is greater in case (ii)4) information insufficientnonfrom the ouronnofoorth of radius Rin

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is same in both cases



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