A cylindrical vessel of height hand base area S is filled with water. An orifice of area s < < S is opened in the bottom of the vessel. Neglecting the viscosity of water determine how soon all the water will flow out of the vessel?
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a
Time = Ss2hg
b
Time=sSg2h
c
Time =Ss2gh
d
Time =2hgSs
answer is A.
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Detailed Solution
When the depth of liquid is y ,applying equation of continuity we can write , -S dy = s2gy dt ⇒∫0tdt = - Ss2g∫0hy-12dy ⇒t = Ss2hg