Question

Two bodies A and B are placed in an evacuated vessel maintained at a temperature of 27⁰C. The temperature of A is 327⁰C and that of B is 227⁰C. The ratio of heat loss from A and B is about –

• A. 2 : 1
• B. 1 : 2
• C. 4 : 1
• D. 1 : 4

Answer 1

Answer: (A)

2 : 1

Answer 2

$\frac{E_{1}}{E_{2}}$ = $\frac{T_{1}^{4}–T_{0}^{4}}{T_{2}^{4}–T_{0}^{4}}$ = $\frac{(600)^{4}–(300)^{4}}{(500)^{4}–(300)^{4}}$