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Question

Water is filled in a cylindrical container to a height of 3 m. The ratio of the cross-section area of the orifice and the beaker is 0.1. The square of the speed of the liquid coming out from the orifice is

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Solution

The correct option is **A**

60.6

(a) Applying continuity equation at 1 and 2, we have A1V1 = A2V2

Furthur applying Bernoullis equation at these two points, We have

p∘+ρgh+12ρV21=p∘+0+12ρV22

Solving eqs. (i) and (ii),

v22=2gH1−A22A21

We have

Substituting the values

We have

v22=2×10×31−(0.1)2=60.6m2/s2

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