Water is flowing through a tube of the non-uniform cross-section. The ratio of the radius at the entry and exit end of the pipe is \(3:2\). Then the ratio of velocities at entry and exit of liquid is:
1. \(4:9\)                         
2. \(9:4\) 
3. \(8:27\)                         
4. \(1:1\)

Subtopic:  Equation of Continuity |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

An incompressible liquid flows through a pipe of radius \(4\) cm. The flow rate is \(3.14\times 10^{-2}\) m3/s. What is the approximate average velocity of the fluid?
1. \(2\) m/s
2. \(4\) m/s
3. \(5\) m/s
4. \(6\) m/s
Subtopic:  Equation of Continuity |
 78%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Water is flowing through a tube of radius \({r}\) with a speed \({v}\). If this tube is joined to another tube of radius \(\dfrac{{r}}{2},\) what is the speed of water in the second tube?
1. \(\dfrac{{v}}{4}\) 2. \(\dfrac{{v}}{2}\)
3. \(2{v}\) 4. \(4{v}\)
Subtopic:  Equation of Continuity |
 77%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

The cylindrical tube of a spray pump has a cross-section of \(8~\text{cm}^2\), one end of which has \(40\) fine holes each of area \(10^{-8} ~\text{m}^2 \). If the liquid flows inside the tube with a speed of \(0.15~\text{m/min}\), the speed with which the liquid is ejected through the holes is:
1. \( 50~\text{ms}^{-1} \)
2. \( 5~\text{ms}^{-1} \)
3. \( 0.05~\text{ms}^{-1} \)
4. \( 0.5~\text{ms}^{-1} \)
Subtopic:  Equation of Continuity |
 76%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

An ideal fluid flows through a pipe of circular cross-section made of two sections with diameters \(2.5\) cm and \(3.75\) cm. The ratio of the velocities in the two pipes is:
1. \(9:4\)
2. \(3:2\)
3. \(\sqrt{3}:\sqrt{2}\)
4. \(\sqrt{2}:\sqrt{3}\)

Subtopic:  Equation of Continuity |
 72%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch