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} )

MHT CET 2020 Physics Solved Paper

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A glass flask is filled up to a mark with 50cc of mercury at 18∘C. If the flask and contents are heated to 38∘C, how much mercury will be above the mark? ( α for glass is 9×10−6,‌∘C and coefficient of real expansion of mercury is 180×10−6∕‌∘C )

0.85cc
0.46cc
0.153cc
0.05cc

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