Question

A glass tube with a sealed end is completely submerged in a vessel with mercury . The air column is 15 cm long. To what height must the upper end be raised above the level of hg so that the level of hg inside the tube is at the level of hg in the vessel ? [atmospheric pressure = 75 cm of hg column]

Answer 1

................................It was the phase of industrialisation before the Industrial Revolution, where there was large- scale industrial production for an international market which was not factory based..............

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