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A cylindrical vessel is filled with wate...

A cylindrical vessel is filled with water upto a height of 1m. The cross-sectional area of the orifice at the bottom is `(1//400)` that of the vessel.
(a) What is the tiome required to empty the tank through the orifice at the bottom?
(b) What is the time required for the same amount of water to flow out if the water level in tank is maintained always at a height of 1m from orifice?

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The correct Answer is:
[(a) 3min, (b) 1.5 min]
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