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Question

Statement - I: L=Iω is always true for bodies of all shapes.
Statement- II: τ=dLdt is always true in inertial frames.

A
Statement I is true, statement II is true and statementII is correct explanation for statement I
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B
Statement I is true, statement II is true but statement II is not correct explanation for statement I
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C
Statement I is true but statement II is false.
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D
Statement I is false but statement II is true.
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Solution

The correct option is B Statement I is true, statement II is true but statement II is not correct explanation for statement I
In Statement - I, L=Iω is the definition of the angular momentum for any rigid body.
In Statement - II, τ=dLdt is also definition for torque but not the reason for the first statement, because it is not relating L to ω and moment of inertia I of rigid body.
Option (b) is correct.

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