A perfect black body is

Related MCQs

• The concept of black body in heat transfers applies to
• A body of weight 100 N falls freely through a distance of 10 m against an atmospheric drag force of 5 N. Considering the body as the system, the work interaction is
• A body of weight 100 N falls freely through a distance of 10 m against an atmospheric drag force of 5 N. Considering the body as the system, the work interaction is
• Internal energy of a perfect gas depends on
• "The molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature".
• According to Lussac's law for perfect gases, the absolute pressure of given mass varies directly as
• The molecular volume of any perfect gas at 600 x 103 N/m3 and 27?C will be
• The perfect heat engine works on the Carnot cycle between 1000?C and 200?C. The efficiency of the engine will be
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• The rate of radiant energy, which is emitted by a surface at any temperature and in small wavelengths is found from the known rate of energy, which under the same conditions would be emitted from a black surface, by multiplying with the absorptivity. Above enunciation is known as