JEE Main 202624 Jan, Morning shiftPhysicsMediumProperties of Solids and Liquids184× since 2002
A brass wire of length 2 m and radius 1 mm at 27 °C is held taut between two rigid supports. Initially it was cooled to a temperature of °C creating a tension in the wire. The temperature to which the wire has to be cooled in order to increase the tension in it to , is ______ °C.