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Question

# Statement - I: →L=I→ω is always true for bodies of all shapes. Statement- II: →τ=d→Ldt 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 IIn Statement - I, →L=I→ω is the definition of the angular momentum for any rigid body. In Statement - II, →τ=d→Ldt 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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