A) 70 \[\text{M}\]
B) 70 m
C) 2.8 \[\text{M}\]
D) 2.8 mm
Correct Answer: C
Solution :
For black body radiation \[\frac{{{\lambda }_{2}}}{{{\lambda }_{1}}}=\frac{{{T}_{1}}}{{{T}_{2}}}\] \[\frac{{{\lambda }_{2}}}{14\mu M}=\frac{200}{1000}\] \[{{\lambda }_{2}}=2.8\mu M\]You need to login to perform this action.
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