Fluid Mechanics Viscosity Question 101
Question: There is a hole of area A at the bottom of cylindrical vessel. Water is filled up to a height h and water flows out in t second. If water is filled to a height 4h, it will flow out in time equal to[MP PMT 1997]
Options:
A)t
B)4t
C)2 t
D)t/4
Show Answer
Answer:
Correct Answer: C
Solution:
Time required to emptied the tank $ t=\frac{A}{A_{0}}\sqrt{\frac{2H}{g}} $ \ $ \frac{t_{2}}{t_{1}}=\sqrt{\frac{H_{2}}{H_{1}}}=\sqrt{\frac{4h}{h}}=2 $ $ \therefore \ \ t_{2}=2t $
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