Two rods of different materials having coefficients of linear expansion 
and Young's moduli 
and 
respectively are fixed between two rigid massive walls. The rods are heated such that they undergo the same increase in temperature. There is no bending of rods. If 
, the thermal stresses developed in the two rods are equally provided 
is equal to
Text Solution
Verified by ExpertsThe correct answer is:
C
Thermal stress = 
.
If thermal stress and rise in temperature are equal then 
⇒ ⇒ 
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