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{"ops":[{"insert":"A system is made by connecting two rods of same cross-sectional area forming a length of 1m at 25\u00b0C. From the combination, on rod is of copper of length 30 cm. The other rod increases by 1.91 mm at 125\u00b0C. It is given that, if the other rod is rigidly fixed between two walls so that no change in length may occur even with the rise of temperature. Find the value of young modulus (Y) and coefficient of linear expansion (\u03b1) for second rod. \u03b1 for copper = 1.7 \u00d7 10\u20135 \u00b0C\u20131, Y for copper = 1.3 \u00d71011 N/M2\n"}]}
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