Q.

Effect of moment of inertia of a rigid body due to thermal expansion is ΔII=xαΔt where x=(where I is moment of inertia;∆I is change in moment of inertia; α is coefficient of linear expansion of solid;∆t is change in temperature)

Moderate

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By Expert Faculty of Sri Chaitanya

answer is 2.

(Detailed Solution Below)

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Detailed Solution

moment of inertia I=mK2 m is mass; K is radius of gyration on differentiating above equation and dividing same with above equation ∆II=2∆KK fractional change in moment of inertia is ∆II=2α∆t α is coefficient of linear expansion of solid ∆t is change in temperature

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