Questions
Two rods are joined between fixed supports as shown in the figure. Condition for no change in the lengths of individual rods with the increase of temperature will be
( = linear expansion coefficient
= Area of rods
= Young modulus)
detailed solution
Correct option is D
Y = StressStrain = TA∆llT = Y.∆llA =Y . Aα∆TIn both the rods tension will be same soT1 = T2, Hence Y1A1α1∆T = Y2A2α2∆TA1A2 = Y2α2Y1α1Talk to our academic expert!
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