NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

1 Hard

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Application +4 | -1

The moment of interia of a rod about its perpendicular bisector is

I

. When the temperature of the rod is increased by

\Delta T

, the increase in the moment of inertia of the rod about same axis is (Here,

\alpha

is the coefficient of linear expansion o the rod) :

View answer and explanation

Correct option: B

2 \alpha {I} \Delta {T}

Option B (

2 \alpha {I} \Delta {T}

) is correct because the increase in moment of inertia is proportional to the original moment of inertia, the coefficient of linear expansion, and the change in temperature.

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