Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 11

# Water and Mercury Are Filled in Two Cylindrical Vessels up to Same Height. Both Vessels Have a Hole in the Wall Near the Bottom. - Physics

MCQ

Water and mercury are filled in two cylindrical vessels up to same height. Both vessels have a hole in the wall near the bottom. The velocity of water and mercury coming out of the holes are v1 and v2 respectively.

#### Options

• v1 = v2

•  v1 = 13.6 v2

• v1 = v2/13.6

• $\text{v}_1 = \sqrt{13 . 6} \text{v}_2$

#### Solution

v1 = v2

The velocity of efflux does not depend on the density of the liquid. It only depends on the height h (given same in the question) and acceleration due to gravity g (constant value here).
v1 = v2 = v = sqrt(2"gh")

Concept: Torricelli'S Law
Is there an error in this question or solution?

#### APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 13 Fluid Mechanics
MCQ | Q 21 | Page 272