Heat TransferEasy
Question
The rectangular surface of area 8cm × 4 cm of a black body at a temperature of 127oC 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 to 327oC, the rate of emission of energy will become.
Options
A.
E
EB.
E
EC.
E
ED.
E
EMore Heat Transfer Questions
Heating two identical balls A and B, A appears blue and B appears red. The relation between their temperature will be...Ice starts forming in lake with water at 0oC and when the atmospheric temperature is −10oC. If the time taken for ...Two Plates of equal areas are placed in contact with each other. their thickness are 2 and 3 respectively. Temp of exter...Suppose the sun expands so that its radius becomes 100 times its present radius and its surface temperature becomes half...One mole of oxygen is contained in a rigid container with walls of inner surface area A, thickness d and thermal conduct...