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NEET Sample Paper NEET Sample Test Paper-60

  • question_answer
    By sucking through a straw, a student can reduce the pressure in his lungs to 750mm of Hg\[(density\text{ }=\text{ }13.6\text{ }g/c{{m}^{3}})\]. Using the straw he can drink water from a glass upto a maximum depth of:

    A) 10cm               

    B) 75cm  

    C) 13.6cm             

    D) 1.36cm

    Correct Answer: C

    Solution :

    [c] Pressure difference between atmospheric and lungs = 760 ? 750 = 10mm 10mm = 1cm Hg Pressure difference = 1cm of Hg                = hpg             \[\Delta P=1\times 13.6\times g\] 'H' upto which sucks water from pip. \[H\text{ }\rho (water)\text{ }g=1\times 13.6\times h\] \[H\text{=}\,13.6cm\]


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