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A cylindrical vessel is filled with equal amounts of weight of mercury on water. The overall height of the two layers is 29.2 cm, specific gravity of mercury is 13.6.  Then the pressure of the liquid at the bottom of the vessel is

a)

29.2 cm of water

b)

29.2 /13.6 cm of mercury

c)

4 cm of mercury

d)

15.6 cm of mercury



Question ID - 57406 | SaraNextGen Top Answer

A cylindrical vessel is filled with equal amounts of weight of mercury on water. The overall height of the two layers is 29.2 cm, specific gravity of mercury is 13.6.  Then the pressure of the liquid at the bottom of the vessel is

a)

29.2 cm of water

b)

29.2 /13.6 cm of mercury

c)

4 cm of mercury

d)

15.6 cm of mercury

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

Let  be the area of cross-section of the cylindrical vessel and  cm be the height of mercury in vessel. The height of water in the vessel  cm

As per question

 or

 Height of water column

 Pressure of the liquids at the bottom

 cm of water column +2 cm of Hg column

 of Hg column +2 cm of Hg column

 cm of Hg column

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