JEE (Advanced) 2017 Paper-1 Question 4

Question 4

A human body has a surface area of approximately 1 $$m^2$$. The normal body temperature is 10 K above the surrounding room temperature $$T_0$$. Take the room temperature to be $$T_0 = 300 K$$. For $$T_0 = 300 K$$, the value of $$\sigma T_0^4 = 460 Wm^{-2}$$ (where $$\sigma$$ is the Stefan-Boltzmann constant). Which of the following options is/are correct?

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