Question
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.
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