Questions
Two rods, one of aluminium and the other made of steel, having initial length . The coefficients of linear expansion for aluminium and steel are respectively. If the length of each rod increases by the same amount when their temperature are raised by
detailed solution
Correct option is C
Given ∆l1 = ∆l2 or l1αat = l2αstl1l2= αsαa or l1l1+l2 = αsαa+αsTalk 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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