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The drawing shows two cylinders. They are identicle in all respects, except one is hollow. In a setup like that in figure identical forces are applied to the right end of each cylinder while the left end is fixed. A. The elongation of A is morethan that of BB. The elongation of B is morethan that of AC. The energy stored in B is more than is AD. The energy stored in A is more than that in B |
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Answer» Correct Answer - B::C `F/A=y(Deltal)/l RightarrowDeltal=((lF)/r)1/A` `RightarrowU=1/2((Deltar)/l)Deltal^(2)=1/2(Deltar)/l((DeltaF)/r)^(2) 1/A^(2)` `Rightarrow Upropto1/A` |
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