A cylinder of height $20 \mathrm{~m}$ is completely filled with water. The velocity of efflux of water (in…

A cylinder of height $20 \mathrm{~m}$ is completely filled with water. The velocity of efflux of water (in $\mathrm{ms}^{-1}$ ) through a small hole on the side wall of the cylinder near its bottom is
  1. 10
  2. 20
  3. 25.5
  4. 5

Solution

$v=\sqrt{2 g h}=\sqrt{2 \times 10 \times 20}=20 \mathrm{~m} / \mathrm{s}$

Asked in: MHT CET Full Test 12

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