Questions
The diameter of a metal ring is D and coefficient of linear expansion is . If the temperature of the ring is increases by 1°C , the circumference of the ring will increases by
detailed solution
Correct option is C
Change of circumference = original circumference x αΔt=2πR×α×1=2πD2×α=πDαTalk to our academic expert!
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A rotating solid metal sphere is heated by . If then percentage change in its moment of inertia is
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