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Question
A simply supported uniform rectangular bar breadth b, depth d and length L carries an isolated load W at its mid span. The same bar experiences an extension 'e' under same tensile load. The ratio of the maximum deflection to the elongation is
,d lk/kkj.k vk/kkj;qä leku vk;rkdkj ckj] ftldh pkSM+kbZ b] xgjkbZ d rFkk yackbZ L gS] vius e/; fcanq ij ,d dsafær Hkkj W ogu djrh gSA ;gh ckj mlh rU; Hkkj ds dkj.k e ek=k dk c<+ko (Extension) vuqHko djrh gSA
vf/kdre fo{ksi.k rFkk c<+ko (Elongation) dk vuqikr Kkr dhft,A
A.
L/d
B.
L/2d
C.
(L/2d)2
D.
(L/3d)2
Answer ( Option C)

(L/2d)2

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