Heat And Thermodynamics

A black reactangular surface of area '\(a\)' emits energy '\(\mathrm{E}\)' per second at \(27^{\circ} \mathrm{C}\). If length and breadth is reduced to \(\left(\frac{1}{3}\right)^{\text {rd }}\) of initial value and temperature is raised to \(327^{\circ} \mathrm{C}\) then energy emitted per second becomes