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By sucking a straw a student can reduce ...

By sucking a straw a student can reduce the pressure in his lungs to `750 mm` of `Hg ("density")= 13.6 kg//cm^(3))` Using the straw, he can drink water from a glass up to a maximum depth of :

A

10 cm

B

75 cm

C

13.6 cm

D

1.36 cm

Text Solution

Verified by Experts

The correct Answer is:
C
Pressure difference between lungs and atmosphere = 760-750=10 mm of Hg.
`H rho_w g = H_(Hg)rho_(Hg)g implies H=(13.6)/(1)xx1` =13.6 cm.
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