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  3. 3 two identical uniform rods a and b are of equal

3 Two identical uniform rods A and B are of equal length L and have...

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3 Two identical uniform rods A and B are of equal length L and have same temperature The cross are square with edge length a Rod A is kept over a smooth surface while the rod B is kept on a rough surface with coefficient of friction Mass of each rod is m and coefficient of liner expansion is a L L A Smooth Rough Heats are given to both the rods and temperatures are increased Rise in temperature is same for both the rods given by AT Work done by weight mg of the rod A during expansion is en boi 2 4 1 mg AT 2 3 a mg 1 AT 2 B a mg AT 2 a mg 1 0 AT

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