A uniform hole in a brass plate has a diameter of 1.2 cm at \( 25^{\circ} \mathrm{C} \) . What is the diameter of the hole when the plate is heated to \( 475^{\circ} \mathrm{C} \) ? (Use the coefficient of linear thermal expansion for brass \( = \) \( 19 \times 10^{-6} \mathrm{~K}^{-1} \) )

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