Q.

The pressure of water on the ground floor, in a water pipe is 150000 Pa. Whereas Pressure on the fourth floor is 30000 Pa. The height of fourth floor is. Takeg=10ms2 .

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a

15 m

b

10 m

c

12 m

d

9 m

answer is C.

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Detailed Solution

ρ1=150000Pa

ρ2=30000Pa

ρ1ρ2=hρg

120000=h×1000×10

h=12

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