Physics Question from JEE Main 2026 · 24 January, Shift 1

A brass wire of length $2 \, \text{m}$ and radius $1 \, \text{mm}$ at $27^\circ \text{C}$ is held taut between two rigid supports. Initially it was cooled to a temperature of $-43^\circ \text{C}$ creating a tension $T$ in the wire. The temperature to which the wire has to be cooled in order to increase the tension in it to $1.4T$ is _____$^\circ \text{C}$.