The total e-missive power of a surface is 500 W/ m2 at temperature T1 and 1200 W/m2 at temperature T2, where the temperature are in Kelvin. Assuming the e-missivity of the surface to be constant, the ratio of the temperature T1 /T2 is

The total e-missive power of a surface is 500 W/ m2 at temperature T1

1.	The total e-missive power of a surface is 500 W/ m² at temperature T₁ and 1200 W/m² at temperature T₂, where the temperature are in Kelvin. Assuming the e-missivity of the surface to be constant, the ratio of the temperature T₁ /T₂ is
A.	0.0308
B.	0.416
C.	0.803
D.	0.874
Answer» D. 0.874

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The total e-missive power of a surface is 500 W/ m2 at temperature T1 and 1200 W/m2 at temperature T2, where the temperature are in Kelvin. Assuming the e-missivity of the surface to be constant, the ratio of the temperature T1 /T2 is

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The total e-missive power of a surface is 500 W/ m² at temperature T₁ and 1200 W/m² at temperature T₂, where the temperature are in Kelvin. Assuming the e-missivity of the surface to be constant, the ratio of the temperature T₁ /T₂ is