61. When absorptivity (α) = 1, reflectivity (ρ) = 0 and transmissivity (τ) = 0, then the body is said to be a
62. The unit of Stefan Boltzmann constant is
63. The unit of Stefan-Boltzmann constant is
Read More Section(Heat and Mass Transfer)
Each Section contains maximum 100 MCQs question on Heat and Mass Transfer. To get more questions visit other sections.