TS EAMCET 6-Aug-2021 Shift 2 Question Paper

The radiated power of a body, P1=1000W
Temperature, T1=400K
As, we know that according to Stefan's
Boltzmann's law,
Radiated power ∝ (Temperature) ‌4
∴ If the radiated power at temperature T2=800K is P2, then ‌

P2

P1

=(‌

T2

T1

)4
⇒‌‌P2‌‌=P1×(‌

T2

T1

)4=1000×(‌

800

400

)4
‌‌=16000W