A. Higher is the temperature of the radiating body, higher is the wavelength of radiation
B. Logarithmic mean area is used for calculating the heat flow rate through a thick walled
cylinder
C. The wavelength corresponding to maximum mono-chromatic emissive power increases with
rise in temperature
D. Solid angle subtended by the finite surface at the radiating element is called the angle of
incidence
Correct Answer: B. Logarithmic mean area is used for calculating the heat flow rate through a thick walled
cylinder ✔
Last Updated: March 03, 2019