1233. 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 = 5.67xl0⁻⁸ W/m².K⁴)

1000
727
800
1200
✅ The correct answer is option A.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top