Questions
A fully filled hemispherical tank of radius R has an orifice of small area a at its bottom. Time required to completely empty the tank, will be (assume that the top surface area of liquid is always much greater than the orifice area)
detailed solution
Correct option is C
A1v1=A2v2⇒πx2−dhdt=a2gh⇒∫0tadt=− R0πR2−R−h2dh2gh⇒t=72 πR5/215 agTalk to our academic expert!
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A cylindrical drum, open at the top, contains 90 litres of water. It drains out through a small opening at the bottom. 30 litres of water comes out in time
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