A one liter flask contains some mercury. It is found that at differ...

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A one liter flask contains some mercury. It is found that at different temperatures the volume of air inside
\( \mathrm{P} \) the flask remains the same. The volume (in litre) of

W mercury in the flask is (Given : coefficient of linear expansion of glass \( =9 \times 10^{-6} /{ }^{\circ} \mathrm{C} \), coefficient of volume expansion of mercury \( =1.8 \times 10^{-4} /{ }^{\circ} \mathrm{C} \).)
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