What is the effect of change in temperature on the Young’s modulus ?
What is the effect of change in temperature on the Young’s modulus ?
With rise in temperature strain increases hence from formula $\mathrm{Y}=\frac{\text { Stress }}{\text { Strain }}$, Young's modulus decreases and when temperature decreases Young's modulus increases.
Similar Questions
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With rise in temperature, the Young's modulus of elasticity
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A force is applied to a steel wire ' $A$ ', rigidly clamped at one end. As a result elongation in the wire is $0.2\,mm$. If same force is applied to another steel wire ' $B$ ' of double the length and a diameter $2.4$ times that of the wire ' $A$ ', the elongation in the wire ' $B$ ' will be $............\times 10^{-2}\,mm$ (wires having uniform circular cross sections)
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Which of the following statements is correct
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Two rods of different materials having coefficients of linear expansion ${\alpha _1},\,{\alpha _2}$ and Young's moduli ${Y_1}$ and ${Y_2}$ 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 ${\alpha _1}:{\alpha _2} = 2:3$, the thermal stresses developed in the two rods are equally provided ${Y_1}:{Y_2}$ is equal to
- [IIT 1989]