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Question
By sucking through a straw, a student can reduce the pressure in his lungs to 750 mm of Hg (density = 13.6g/cm3). Using the straw, he can drink water from a glass upto a maximum depth of
By sucking through a straw, a student can reduce the pressure in his lungs to 750 mm of Hg (density = 13.6g/cm3). Using the straw, he can drink water from a glass upto a maximum depth of
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Solution
The correct option is C 13.6 cm
Pressure difference between lungs of student and atmosphere = 760 – 750
= 10 mm of Hg
Δp=ρgh = 10 mm of Hg
h = 13.6cm
13.6 cm
Pressure difference between lungs of student and atmosphere = 760 – 750
= 10 mm of Hg
Δp=ρgh = 10 mm of Hg
h = 13.6cm
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