\[t={{t}_{1}}+{{t}_{2}}=\frac{M}{R}(C\Delta T+L)\] A glass flask is filled up to a mark with 50 cc of mercury at \[18{}^\circ C\]. If the flask and contents are heated to \[38{}^\circ C,\] how much mercury will be above the mark? (\[\alpha \] for glass is \[9\times {{10}^{-6}}/{}^\circ C\] and coefficient of real expansion of mercury is\[180\times {{10}^{-6}}/{}^\circ C\])

• A. 0.85 cc
• B. 0.46 cc
• C. 0.153 cc
• D. 0.05 cc