Question

How does thermal radiation change with temperature?

Answer 1

Change in temperature with thermal radiation:

• According to Stefan Boltzmann law ,when the temperature is above absolute zero, black body emits a electromagnetic radiation per unit time from an area which is termed as thermal radiation.
• This law is represented as $\mathrm{E}=\mathrm{\sigma T}4$ , every body above absolute zero $\left(0\mathrm{K}\right)$ emit radiation which is proportional to the fourth power of absolute temperature.

Thus, The temperature is proportional to the fourth power of absolute temperature when radiation is emitted.