perfect black body sentence in Hindi

Examples

1. Now, our black hole article isn't bad, but the opening paragraph does go into the " general theory of relativity ", the " deformation of spacetime ", a " perfect black body in thermodynamics ", the " theory of quantum mechanics ", and " Hawking radiation ".
2. As the Field absorbs energy it reradiates it over its entire surface, acting as a perfect black body; the colour of the Field moves from infrared to red and through the visible spectrum to blue as the amount of reradiated energy increases . ( However, in " The Mote in God's Eye " the field is also described as glowing green or violet, which is not possible for a true black body.
3. Thus Kirchhoff's law of thermal radiation can be stated : " For any material at all, radiating and absorbing in thermodynamic equilibrium at any given temperature, for every wavelength, the ratio of emissive power to absorptive ratio has one universal value, which is characteristic of a perfect black body, and is an emissive power which we here represent by . " ( For our notation, Kirchhoff's original notation was simply .)
4. Thus "'Kirchhoff's law of thermal radiation "'can be stated : " For any material at all, radiating and absorbing in thermodynamic equilibrium at any given temperature " ", for every wavelength " ", the ratio of emissive power to absorptive ratio has one universal value, which is characteristic of a perfect black body, and is an emissive power which we here represent by " " . " ( For our notation, Kirchhoff's original notation was simply .)