Heat TransferHard
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
B.
E
C.
E
D.
E
More Heat Transfer Questions
Temperature of a body is 4000 C assuming the surrounding themperature to be negligible at what tempearture will be the b...If eλ and aλ be the emissive power and absorption power respectively of a body and Eλ be the emissive pow...A long metallic bar is carrying heat from one of its ends to the other end under steady-state. The variation of temperat...A wall is made up of two layers A and B. The thickness of the two layers is the same, but materials are different. The t...By cooling two liquids of equal volume from temp. 60 oC to 50 oC in same conditions time required are 324 and 810 sec.re...