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CGP EDU Academic Team
Published on: September 13, 2026
If a cylinder of diameter 1.0 cm at 30°C is to be solid into a hole of diameter 0.9997 cm in a steel plate at the same temperature, then minimum required rise in the temperature of the plate is: (Coefficient of linear expansion of steel $= 12 \times 10^{-6} \, / ^\circ \mathrm{C}$ )
Text Solution
Verified by ExpertsThe correct answer is:
A
$\alpha = \frac{\Delta L}{L_0 \Delta \theta} = \frac{(1 - 0.9997)}{0.9997 \times 12 \times 10^{-6}} = 25^\circ \mathrm{C}$
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