67X10-8W/m2 K4, the net radiation heat exchange rate in kW/m2 between the two plates is
A.)0.66
B).0.79
C).0.99
D).3.96
Answer:A
67X10-8W/m2 K4, the net radiation heat exchange rate in kW/m2 between the two plates is
A.)0.66 B).0.79 C).0.99 D).3.96
Explanation:-Given T1=400K , T2=300K