10. There are two identical small holes of area of cross-section a on the opposite sides of a tank containing a liquid of density ρ . The difference in height between the holes is h. Tank is resting on a smooth horizontal surface. Horizontal force which will has to be applied on the tank to keep it in equilibrium is
(a) ghρa
(b) (2gh)/(ρa)
(c) 2ρagh
(d) (ρgh)/a
Answer-c
(20)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)