A) \[{{T}_{P}}>{{T}_{Q}}>{{T}_{R}}\]
B) \[{{T}_{P}}>{{T}_{R}}>{{T}_{Q}}\]
C) \[{{T}_{P}}<{{T}_{R}}<{{T}_{Q}}\]
D) \[{{T}_{P}}<{{T}_{Q}}<{{T}_{R}}\]
Correct Answer: B
Solution :
We know from Weins displacement law |
\[{{\lambda }_{m}}T=\] constant |
So. \[T\propto \frac{1}{{{\lambda }_{m}}}\] |
As, \[{{\lambda }_{r}}>{{\lambda }_{g}}>{{\lambda }_{v}}\] |
So, \[{{T}_{r}}<{{T}_{g}}<{{T}_{v}}\] |
Given \[P\to {{v}_{\max '}}\,Q\to {{r}_{\max '}}R\to {{g}_{\max }}\] |
Hence, \[{{T}_{Q}}<{{T}_{R}}<{{T}_{P}}\] |
i.e., \[{{T}_{P}}>{{T}_{R}}>{{T}_{Q}}\] |
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