Q. The thermal radiative flux from a surface of emissivity = 0.4 is 22.68 kW/m². The approximate surface temperature (K) is
(Stefan-Boltzman constant = 5.67 × 10^-8 W/m².K⁴)

(A) 727
(B) 800
(C) 1000
(D) 1200

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✅ Correct Answer: (C) 1000

Published by Ram Sharma ⭐ 193.88K Points at 12-May-2023 02:30 pm in Heat Transfer

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