First slide
Radiation
Question

The rate of emission of radiation of a black body at temperature 27oC is E1. If its temperature is increased to 327oC the rate of emission of radiation is E2.  The relation between E1 and E2 is   

Easy
Solution

t1 = 270C, t2 = 3270C, T1 = 300k, T2 = 600k
\large \frac {E_1}{E_2}=\left ( \frac {T_1}{T_2} \right )^4=\left ( \frac {300}{600} \right )^4;\;E_2=16E_1

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App