Planck's distribution law is valid for __________ bodies.

Related MCQs

• According to Kirchoff’s law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a
• "The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium". This is __________ law.
• Fourier’s law of heat conduction is valid for
• If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.
• If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.
• Stefan's block body radiation law can also be derived from __________ law.
• The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as
• Heat transfer by radiation between two bodies at T1 & T2 and in an ambient temperature of Ta°C depends on
• All bodies above absolute zero temperature emit radiation". Above statement is based on
• Two bodies one hot and the other cold are kept in vacuum. What will happen to the temperature of the hot body after sometime?