The diameter of a brass ring at 30 °C is 50.0 cm. To what temperature must this ring be heated to increase its diameter to 50.29 cm? [ linear expansivity of brass = 1.9 x 10−5 K−1] by Sunday | Jan 11 | Physics WAEC | 0 comments A. 152.6 °C B. 182.6 °C C. 306.1 °C D. 335.5 °C Correct Answer: Option A = 152.6 °C Users Also Read These:An iron rod of length 50m and at a temperature of…The length of an iron bar is 100cm at 20°C. At what…If the cubic expansivity of brass between 27°C and…An aluminium rod of length 1.8m at 100oC is heated…A blacksmith heated a metal whose cubic expansivity…