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Q.

Statement I : A sphere cannot roll on a smooth inclined surface.

Statement II : The motion of a rigid body which is pivoted or fixed in some way is rotation.

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a

If both statement I and statement II are true and statement II is the correct explanation of statement I.

b

If both statement I and statement II are true but statement II is not the correct explanation of statement I.

c

If statement I is true but statement II is false 

d

If both statement I and statement II are false 

answer is B.

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Detailed Solution

A sphere cannot roll on a smooth inclined plane, because force of friction is zero for smooth surface and in case of sphere friction provides the torque for rolling.

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