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Water is filled up to a height h in a cylindrical vessel. It takes time t to completely drain the vessel by means of a small hole at the bottom. If water is filled up to a height 4 h then the time it takes to completely drain the vessel is

Options

  1. At
  2. B4 t
  3. C2 t
  4. Dt 4

Correct answer

C. 2 t

Step-by-step solution

Time required to empty the tank t = A A 0 2 H g ⇒ t 2 t 1 = H 2 H 1 = 8 h 2 h = 2 ∴ t 2 = 2 t

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