Two rods of different materials having coefficients of thermal expansion α$$1$$, α$$2$$ and young’s modulus $$Y1$$, $$Y2$$ respectively are fixed between two rigid walls. The rods are heated such that they undergo the same increase in temperature. There is no bending of rods. If α$$1$$ : α$$2$$ $$=2$$:$$3$$, thermal stress developed in the rods are equal provided $$Y1$$ : $$Y2$$ is equal to

Question

Infinity Learn · Accepted Answer

Thermal stress $$Y1$$α$$1$$Δ$$t=Y2$$α$$2$$Δt

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