Download Aptitude Crack
img not found img not found

Heat Transfer

Q1: In thermal radiation for a black body (where, ε is emissivity and α is absorptivity)

A α = 1; ε ≠ 1

B α ≠ 1, ε = 1

C α ≠ 1, ε ≠ 1

D α = 1; ε = 1

ANS:D - α = 1; ε = 1

In thermal radiation for a black body, both the absorptivity (α) and emissivity (ε) are equal to 1. So, the correct statement is: d) =1;=1α=1;ε=1



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.