Question

A composite rod is made by joining a copper rod, end to end, with a second rod of different material but of the same cross-section. At $25^{\circ}C$, the composite rod is 1 m in length, of which the length of the copper rod is 30 cm. At $125^{\circ}C$ the length of the composite rod increases by1.91 mm. When the composite rod is not allowed to expand by holding it between two rigid walls, it is found that the length of the two constituents do not change with rise in temperature. Find the Young’s modulus and the coefficient of linear expansion of the second rod. [For copper, coefficient of linearexpansion =$1.7 \times 10^{-5} /^{\circ}C$, Young’s modulus = $1.3 \times 10^{11} N/m^2$.]

Answer 1

helo in your life and a half an error message to me that it was so happy you have received the message is intended for use only thing