Answer :
Answer:
3.16 i1
Explanation:
T1 = 300 k
I1 = i1
T2 = 400 k
i2 = ?
The intensity is directly proportional to the four powers of the absolute temperature.
I ∝ T^4
So, [tex]\frac{i_{2}}{i_{1}}=\frac{T_{2}^{4}}{T_{1}^{4}}[/tex]
[tex]\frac{i_{2}}{i_{1}}=\frac{400^{4}}{300^{4}}[/tex]
i2 = 3.16 i1
Thus, the intensity becomes 3.16 i1.