A) 7800 K
B) 6240 K
C) 5240 K
D) 3640 K
Correct Answer: B
Solution :
From Wien law \[{{\lambda }_{1}}{{T}_{1}}={{\lambda }_{2}}{{T}_{2}}\] \[{{T}_{2}}=\frac{{{\lambda }_{1}}{{T}_{1}}}{{{\lambda }_{2}}}\] \[=\frac{12000\times 2600}{5000}\] \[{{T}_{2}}=6240K\]
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