Question

AA black body in shape of a cube radiates 567 W. Its temperature is 127°C. What is length of its side?​

Answer 1

length of the side of cube = 0.625 meter.

Given:

A black body in shape of a cube radiates 567 W.

Its temperature is 127°C = 400 k.

To find:

length of its side.

Explanation:

Heat transfer in radiation = $\sigma$ ×a × $T^4$

Where               $\sigma$ = Stefan-Boltzmann constant = 5.67 × $10^-^8$ W/m²$K^4$

                         a = cross sectional area = $(Length)^2$

                         T = Absolute temperature.

Heat transfer in radiation = $\sigma$ ×a × $T^4$

                                  567 =5.67 × $10^-^8$ × $(Length)^2$ × $400^4$

                            Length = 0.625 meter.

length of the side of cube = 0.625 meter.

To learn more...

1)Explain briefly the process of heat transfer by radiation.

https://brainly.in/question/7724044

2)Explain heat transfer process in conduction, convection, radiation.

https://brainly.in/question/1749498