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12. There is a hole in the bottom of tank having water. If total pressure at bottom is 3 atm

(1 atm = 105N/m2) then the velocity of water flowing from hole is

(a)  √400 m/s                                            (b)  √600 m/s

(c)  √60 m/s                                               (d)  None of these

Answer-a

(2)

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