A copper rod, 5m long when heated through 20c, expands by 1mm. If a second copper rod, 2.5m long is heated through 5c, by how much will it expand? by Sunday | Jan 4 | Physics WAEC | 0 comments A. 4mm B. 2mm C. 0.25mm D. 0.12mm Correct Answer: Option C C. 0.25mm Users Also Read These:A metal rod of length 100cm is heated through 100°C,…118.8cm² surface of the copper cathode of a…Calculate the mass of the copper deposited during…A metal rod of length 50cm is heated from 40oC to…A piece of copper of mass 30g loses 60J of heat…