By sucking through a straw, a student can reduce the pressure in his lungs to 750 mm of Hg (density $= 13.6\ g\ {cm}^{- 3})$. Using the straw, he can drink water from a glass upto a maximum depth of

Question

Dr. Abubacker · Accepted Answer

(c) Pressure differences between lungs of students and atmosphere
$= (760 - 750)mm\ of\ Hg$
$ie$, $hho g = 10mm\ of\ Hg = 1\ cm\ of\ Hg\ $
or $h 	imes 1 = 1 	imes 13.6$
$	herefore$ $h = 13.6\ cm$

Q. By sucking through a straw, a student can reduce the pressure in his lungs to 750 mm of Hg (density $= 13.6\ g\ {cm}^{- 3})$. Using the straw, he can drink water from a glass upto a maximum depth of

Explanation

Reviewed by Dr. Abubacker

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