Q. 135.0( 1 Vote )

# A hemispherical tank of radius 1 m is full of water. A pipe connected to it empties it at the rate of 7 litres per second. How much time will it take to empty the tank?

Answer :

Radius of the hemispherical tank = 1 m
= m ∴ Volume of water in the tank = π r3
= × × × ×
= cu. m
= cu. cm
= × litres
Water emptied per second = 7 litres ∴ Time required to empty the tank = × ×
= 1604.17 seconds
=
= 26.74 minutes

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