NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Mechanical Properties of Fluids
NEET · Physics · Mechanical Properties of Fluids
A tank is filled with a liquid and a small hole is made near the...
A tank is filled with a liquid and a small hole is made near the bottom of the tank. Consider the speed of efflux of liquid through the hole.
Statements:
1. depends on the area of the hole.
2. depends on the density of the liquid.
3. depends on the height of the liquid column above the hole.
4. depends on the acceleration due to gravity.
Which of the above statements is/are correct?
Options
- AOnly 3 and 4 are correct
- BOnly 1 and 2 are correct
- C1, 2 and 3 are correct
- DAll are correct
Correct answer
A. Only 3 and 4 are correct
Step-by-step solution
We use Torricelli's theorem for efflux speed: (v=\sqrt{2 g h})
- Depends on height (h) of liquid column
- Depends on acceleration due to gravity (g)
- Does NOT depend on area of hole (area affects discharge, not velocity)
- Does NOT depend on density (cancels out in Bernoulli's equation)