MP Board · Class 11 · Physics · Mechanical Properties of FluidsThe velocity of efflux ($v$) of a liquid through an orifice at depth $h$ below the free surface is given by Torricelli's law as:
Step-by-Step Solution
Torricelli's law states that the speed of efflux of a liquid through an open hole at depth $h$ is given by $v = \sqrt{2gh}$, which is the same as the speed gained by a freely falling body from height $h$.
Detailed Options Breakdown
Option : $\sqrt{2gh}$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: $2gh$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mechanical Properties of Fluids.
Option 2: $\sqrt{gh}$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mechanical Properties of Fluids.
Option 3: $\frac{1}{2}gh$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mechanical Properties of Fluids.
💡 Study Guide: This question tests core syllabus concepts from Mechanical Properties of Fluids. For formulas, key summaries, and mock exam reference guides, read the full Mechanical Properties of Fluids Revision Notes.