A) \[{{200}^{o}}C\]
B) \[{{300}^{o}}C\]
C) \[{{500}^{o}}C\]
D) \[{{150}^{o}}C\]
Correct Answer: B
Solution :
The formula for unknown temperature is \[t=100\left( \frac{{{P}_{t}}-{{P}_{0}}}{{{P}_{100}}-{{P}_{0}}} \right)\] At \[{{0}^{o}}C,\,{{P}_{0}}=40\,cm,\,p\] at \[{{100}^{o}}C=60\,cm\] \[{{P}_{t}}=100\,cm\] \[\therefore \] \[t=100\left( \frac{1000-40}{60-40} \right)={{300}^{o}}C\].
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