engineering recuitment GATE ME 2023-24 Test Series Heat Transfer Radiation Properties of Surface Emission
Which of the following statements are incorrect?
1
For a non-reflecting body, radiosity is equal to its emissive power.
2
For a white body, both absorptivity and reflectivity are zero.
3
For diathermanous bodies, both transmissivity and absorptivity are zero.
4
It is mandatory for all black bodies to be in black color.