A) 14 mm
B) 7\[\mu m\]
C) 2.8 \[\mu m\]
D) 28 mm
Correct Answer: A
Solution :
From Wiens displacement law \[{{\lambda }_{m}}T=\]= constant, Hence, \[{{\lambda }_{{{m}_{1}}\,}}{{T}_{1}}={{\lambda }_{{{m}_{2}}}}{{T}_{2}}\] So, \[{{\lambda }_{{{m}_{2}}}}=\frac{{{\lambda }_{{{m}_{1}}}}{{T}_{1}}}{{{T}_{2}}}=\frac{14\times 200}{1000}=2.8\mu m\]You need to login to perform this action.
You will be redirected in
3 sec