Home
Class 11
PHYSICS
The cylindrical tube of a spray pump has...

The cylindrical tube of a spray pump has radius `R`, one end of which has `n` fine holes, each of radius `r`. If the speed of the liquid in the tube is `V`, the speed of the ejection of the liquid through the holes is:

A

`(v)/(n)[(R)/(r)]`

B

`(v)/(n)[(R)/(r)]^((1)/(2))`

C

`(v)/(n)[(R)/(r)]^((3)/(2))`

D

`(v)/(n)[(R)/(r)]^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

    ALLEN |Exercise Exercise 3 (Assertion & Reason)|32 Videos
  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

    ALLEN |Exercise Exercise 3 (Comprehension based questions)|23 Videos
  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

    ALLEN |Exercise Exercise 1 (Fluid Statics)|40 Videos
  • CENTRE OF MASS

    ALLEN |Exercise EXERCISE-V B|19 Videos
  • ERROR AND MEASUREMENT

    ALLEN |Exercise Part-2(Exercise-2)(B)|22 Videos

Similar Questions

Explore conceptually related problems

The cylindrical tube of a spray pump has radius R, one end of which has 'n' fine holes each of radius r. If the speed of the liquid in the tube is v, then what is the speed of the ejection of the liquid through the hole ?

The cylindrical tube of a spray pump has a cross-section of 8 cm^2 , one end of which has 40 fine holes each of area 10^-8 m^2 . If the liquid flows inside the tube with a speed of 0.15 m min^-1 , the speed with which the liquid is ejected through the holes is.

The cylindrical tube of a spray pump has a cross -section of 8.0cm^(2) one end of which has 40 fine holes each of diameter 1.0mm . If the liquid flow inside the tube is 1.5mmin^(-1) , what is the speed of ejection of the liquid through the holes ?

A paper disc of radius R from which a hole of radius r is cut out, is floating in a liquid of surface tension, T. What will be force on the disc due to surface tension?

A solid sphere of radius R made of a material of bulk modulus K is surrounded by a liquid in a cylindrical container. A massless pistion of area A floats on the surface of the liquid. When a mass M is placed on the piston to compress the liquid the fractional change in the radius of the sphere, deltaR//R , is .............

A particle is moving in a circle of radius r with speed v as shown in the figure. The magnitude of change in velocity in moving from P to Q is

A horizontal oriented tube AB of length 5m rotates with a constant angular velocity 0.5 rad/s about a stationary vertical axis OO' passing through the end A. the tube is filled with ideal fluid. The end of the tube is open, the closed end B has a very small orifice. The velocity with which the liquid comes out from the hole (in m/s) is

An observer can see through a pin-hole the top end of a thin rod of height h, placed as shown in the figure. The beaker height is 3h and its radius h. When the beaker is filled with a liquid up to a height 2h, he can see the lower end of the rod. Then the refractive index of the liquid is

A liquid is kept in a cylindrical vessel which is being rotated about a vertical axis through the centre of the circular base .If the redius of the vessel is r and angular velocity of rotation is omega , then the difference in the heights of the liquid at the centre of the vessel and the edge is .....

ALLEN -ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 2 (One or more than one correct answer)
  1. A sperical ball of radius r and relative density 0.5 is floating in eq...

    Text Solution

    |

  2. Three blocks, labeled A, B and C are floating in water as shown in the...

    Text Solution

    |

  3. The cylindrical tube of a spray pump has radius R, one end of which ha...

    Text Solution

    |

  4. A ballong filled with air is weighted so that it barely floats in wate...

    Text Solution

    |

  5. A cylindrical container of radius 'R' and height 'h' is completely fil...

    Text Solution

    |

  6. A small uniform tube is bent into a circle of radius r whose plane is ...

    Text Solution

    |

  7. A U-tube of base length l filled with the same volume of two liquids o...

    Text Solution

    |

  8. A U-tube of base length l filled with the same volume of two liquids o...

    Text Solution

    |

  9. A non-uniform rod of mass m, length l and radius r is having its centr...

    Text Solution

    |

  10. A square box of water has a small hole located the bottom corners. Whe...

    Text Solution

    |

  11. Water filled in an empty tank of area 10 A through a tap of cross sect...

    Text Solution

    |

  12. Two very wide parallel glass plates are held vertically at a small sep...

    Text Solution

    |

  13. A piece of cork starts from rest at the bottom of a lake and floats up...

    Text Solution

    |

  14. A sealed tank containing a liquid of density rho moves with horizontal...

    Text Solution

    |

  15. The U-tube shown has uniform cross-section A liquid is filled in the t...

    Text Solution

    |

  16. Water coming out of the mouth of a tap and falling vertically in strea...

    Text Solution

    |

  17. There are two identical small holes on the opposite sides of a tank co...

    Text Solution

    |

  18. A U-tube of uniform cross section (see figure) is partially filled wit...

    Text Solution

    |

  19. A homogeneous solid cylinder of length L(LltH/2), cross-sectional area...

    Text Solution

    |

  20. A mercury manometer is connected as shown in the figure. The differenc...

    Text Solution

    |