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Grade: 12
        Two wires of  the same length and radius are joined end to end and loaded.If the youngs moduli of the materials of the wire are Y1and Y2
one year ago

Answers : (1)

Arun
18705 Points
							
Dear Soham
 
in series
delta L  = delta L1 + delta L2
hence
cross ection are and length is same, then
1 / Y = 1/ Y1 + 1/ Y2
1/ Y = Y1+ Y2 / Y1* Y2
Y = Y1 * Y2 / (Y1 + Y2)
hence option D  is correct.
 
Regards
Arun (askIITians forum expert)
one year ago
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