An axially loaded member 600 mm long is carrying a tensile load of 40 kN. Its maximum stress is 100 Pa and its maximum deflection is 0.25 mm. Assume E = 210 GPa. The minimum area to meet both of these criteria is most nearly a. 540 mm² b. 460 mm² O c. 630 mm² O d. 420 mm²

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Atomic diffusion in solids

In material science, diffusion can take place in solid, liquid, and gases. In solids, atomic diffusion can take place with the help of thermally activated and randomly vibrating atoms. The atomic diffusion in solids is complex and very slow in comparison to atomic diffusion in liquids and gases because the interatomic distance between the atoms is smaller in solids as compared to liquids and gases.