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Radiation | Prevost theory of exchange | emissivity | Perfectly black body | Kirchhoff law IIT JEE are discussed by Kota famous faculty Amit Bijarnia(IITD) (ABJ sir)

Topics covered in this lecture with timestamp :
00:00 Introduction to Radiation: Introduction to the concept of radiation as a mode of heat transfer through electromagnetic waves, independent of any medium.
08:28 Maxwell's Theory: Explanation of Maxwell's theory, which provides a theoretical framework for understanding electromagnetic radiation.
14:05 Points to Remember on Radiation: Key points and concepts to remember regarding radiation, likely emphasizing fundamental principles and laws.
26:25 Prevost Theory of Exchange: Discussion on Prevost's theory of exchange, which describes the continuous exchange of radiation between bodies at different temperatures.
31:07 Perfectly Black Body: Explanation of a perfectly black body, an idealized concept used as a reference standard for radiation.
39:35 Absorptive Power: Explanation of absorptive power, which measures the ability of a body to absorb radiation falling on it.
46:05 Ferry's Black Body: Introduction to Ferry's black body, an approximation of a perfect black body used in practical applications.
54:49 Emissive Power: Explanation of emissive power, which measures the rate at which a body emits radiation.
01:00:50 Emissivity: Discussion on emissivity, a material property that quantifies how efficiently a surface emits radiation compared to a perfect black body.
01:06:28 Example on Emissivity: Solving example problem related to emissivity to illustrate its application in practical scenarios.
01:12:00 Kirchoff's Law: Introduction to Kirchoff's law, which states that the ratio of emissive power to absorptive power is the same for all bodies at a given temperature and wavelength.


Heat Transfer for JEE Mains and Advanced | Thermal Current | Steady State in Heat Transfer | Ohm's Law of Heat Conduction | Series Combination of Resistances | Parallel Combination of Resistances | Radiation in Heat Transfer | Kirchhoff's Law of Radiation | Emissivity in Radiation | StefanBoltzmann Law | Prevost's Theory of Exchange | Wien's Displacement Law | Newton's Law of Cooling | Perfectly Black Body in Heat Transfer.


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