alleryWater leaves a hole in an open tank at the speed of a freely falling body. This is:
APascal's fluid law
BHooke's spring law
CBoyle's gas law
DTorricelli's law
Answer & Solution
Correct answer: D. Torricelli's law
1. Efflux means outflow.
2. Torricelli found its speed formula.
3. It matches free fall from the liquid height.
_Source: syllabus Physics Part II, Chapter 10, Mechanical Properties of Fluids._
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