There is a hole in a tank. of. water at the bottom. If pressure is. 3atm at bottom speed of efflux
Correct answer: A. 20 m/s
- A. 20 m/s
- B. 20√2 m/s
- C. 10√2 m/s
- D. None
Explanation
To find the speed of efflux, we use Torricelli's theorem: v = √(2gh + 2P/ρ). Here, 'P' is the pressure at the hole, 'ρ' is the density of the fluid, and 'h' is the height of the fluid column above the hole. Given the pressure is 3 atm (303975 Pa) and assuming the density of water is 1000 kg/m³, the height effect is negligible compared to the pressure term. Calculating, we find v = √(2 * 303975 / 1000) = 20 m/s. Thus, Option A is correct. Option B and Option C are incorrect as they do not match the calculation, and Option D is incorrect since there is a correct answer.
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