Question

Two bodies A and B are kept in
an evacuated vessel maintained at a temperature of
27 °C. The temperature of A and B are 527 °C and
127 °C, respectively. Compare the rates of their
heat emission.​

Answer 1

Hpoe it helps u check it.

Answer 2

Answer:

From Stefan's Law:

Δt

ΔQ

=σeA(T

4

−T

o

4

)

ΔQ

B

ΔQ

A

=

700

4

−300

4

600

4

−300

4

=0.52

The ratio of rates of loss of heat can be found from the Stefan's equation. T is given as 600K for A and 700K for B, the T

o

is 300K in both the cases, on calculation the ratio of heat loss comes around 0.52.