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Consider a brass rod and a steel rod (80...

Consider a brass rod and a steel rod (80 cm longer than brass rod) at `0^(@)C`. It is observed that on increasing temperatures of the two rods by same amount difference in lengths of the two rods does not change. Given that the thermal coefficient of linear expansion for steel and brass are `11xx10^(-6).^(@)C^(-1)` and `19xx10^(-6).^(@)C^(-1)` respectively. The sum of lengths of the two rods at `0^(@)C` is

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The difference in length of two metal rods A and B is 25 cm at all temperatures. Coefficients of linear expansion of the materials of A and B are 1.28 times 10^(-5@)C^(-1) " and " 1.92 times 10^(-5@)C^(-1) respectively. Find the length of each rod at 0^(@)C .

At 40^(@)C , a brass rod has a length 50 cm and a diameter 3.0 mm. it is joined to a steel rod of the same length and diameter at the same temperature. What is the change in the length of the composite rod when it is heated to 240^(@)C ? The coefficient of liear expansion of brass and steel are 2.0xx10^(-5).^(@)C^(-1) and 1.2xx10^(-5).^(@)C^(-1) respectively:

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A brass rod length 50 cm and diamteer 3.0 mm is joined to a steel rod of the same length and diameter. What is the change in length of the combined rod at 250^(@)C if the original length are at 40^(@)C ? Coefficient of linear expansion of brass and steel are 2.10xx10^(-5) .^@C^(-1) and 1.2 xx 10^(-5) ^(@)C^(-1) respectively.

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