The rectangular surface of area 8"cm "xx4" cm" of a black body at a temperature of 127^(0)C emits energy at rate of E per second. If the legth and breadth are reduced to half of its initial value and the temperature is raised to 327^(0)C, the rate of emission of energy will be

The rectangular surface of area 8"cm "xx4" cm" of a black body at a te

1.	The rectangular surface of area 8"cm "xx4" cm" of a black body at a temperature of 127^(0)C emits energy at rate of E per second. If the legth and breadth are reduced to half of its initial value and the temperature is raised to 327^(0)C, the rate of emission of energy will be
Answer» `((3E)/(8))` `((9E)/(16))` `((81E)/(16))` `((81E)/(64))` ANSWER :D