Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • I have a doubt, kindly clarify. - A liquid of density is coming out of a hose pipe of radius a with horizontal speed v and hits a mes - Properties of Solids and Liquids - JEE Main

A liquid of density \rho is coming out of a hose pipe of radius a with horizontal speed v and hits a mesh. 50% of the liquid passes through the mesh unaffected. 25% looses all of its momentum and 25% comes back with the same speed. The resultant pressure on the mesh will be:

 

  • Option 1)

     

    \frac{3}{4}\rho v^{2}

  • Option 2)

     

    \frac{1}{4}\rho v^{2}

  • Option 3)

     

    \rho v^{2}

  • Option 4)

     

    \frac{1}{2}\rho v^{2}

Answers (1)

best_answer

 

Torricelli's Theorem / Velocity of Efflux -

In fluid dynamics relating the speed of fluid flowing out of an orifice. 

- wherein

Momentum per second carried by liquid per second 

\varrho aV^{2}

Net force 

1. due to reflected liquid = 2[\frac{1}{4}\varrho aV^{2}]

2. due to stopped liquid = \frac{1}{4}\varrho aV^{2}

Total force = \frac{3}{4}\varrho aV^{2}

\because P=\frac{3}{4}\varrho aV^{2}

 

 


Option 1)

 

\frac{3}{4}\rho v^{2}

Option 2)

 

\frac{1}{4}\rho v^{2}

Option 3)

 

\rho v^{2}

Option 4)

 

\frac{1}{2}\rho v^{2}

Posted by

admin

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

How to crack JEE Mains 2025 in 1 month? Follow study plan, revise high-score topics, experts advice
anam-khan

IIT JEE aspirant from Bihar found hanging in Kota hostel; 17th suicide this year
anam-khan

JEE Main 2025 just a month away; section-wise preparation tips, important topics, strategies

Latest Question