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On loading a metal wire of cross section 10^(-6) m^2 and length 2m by a mass of 210 kg it extends by 16mm and suddenly broke from the point of support. If density of that metal is 8000 kgm^(-3)and its specific heat is 420 Jkg^(-1)K^(-1) the rise in temperature of wire is |
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Answer» `2.5^@C` |
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