a steel plug has a diameter of 5cm at 30°c .atehat temperature will it fit exactly into a hole of constant diameter 4.997cm ( coefficient of liner expansion of stee is 11×10-60C-1
The contraction of the diameter "\\Delta d" of the plug with temperature is described as follows:
where "\\Delta d = 4.997cm - 5cm = -0.003cm = -3\\times 10^{-5}m", "\\alpha = 11\\times 10^{-6}\\degree C^{-1}" is the coefficient of linear expansion of steel, "d = 5cm = 5\\times 10^{-2}m" is the current diameter, "T_1 = 30\\degree C" is the initial temperature, and "T_2" is the final required temperature. Solving for "T_2", obtain:
Answer. "-25\\degree C".
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