(c) $\frac{E_{2}}{E_{1}} = \left( \frac{T_{2}}{T_{1}} \right)^{4} \Rightarrow T_{2} = \left( \frac{E_{2}}{E_{1}} \right)^{1/4} \times T_{1} = (16)^{1/4} \times (273 + 127)$ $\Rightarrow T_{2} = 800\ K = 527℃$
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.