A cylindrical vessel of $90 cm$ height is kept filled upto the brim. It has four holes $ 1, 2, 3, 4$ which are respectively at heights of $20 cm, 30 cm, 45 cm $ and $50 cm$ from the horizontal floor $PQ.$ The water falling at the maximum horizontal distance from the vessel comes from
AHole number $4$
BHole number $ 3$
CHole number $ 2$
DHole number $1$
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BHole number $ 3$
b (b) Horizontal range will be maximum when $h = \frac{H}{2} = \frac{{90}}{2}$
$= 45 cm$ i.e. hole $3.$
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