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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 13 - Thermal Expansion, Calorimetry and Transmission of Heat > The rectangular surface of area 8 cm × 4 cm of a black body at a temperature of 127 degree C emits energy at the rate of E per second. If the length and breadth of the surface are each reduced to half of the initial value and the temperature is raised 327 degree C, the rate of emission of energy will become

The rectangular surface of area 8 cm × 4 cm of a black body at a temperature of 127 degree C emits energy at the rate of E per second. If the length and breadth of the surface are each reduced to half of the initial value and the temperature is raised 327 degree C, the rate of emission of energy will become

Two liquids A and B are at 32^∘C and 24^∘C. When mixed in equal masses the temperature of the mixture is found to be 28^∘C. Their specific heats are in the ratio of