Home
Class 11
PHYSICS
An open pan P filled with water of densi...

An open pan P filled with water of density `(rho_w)` is placed on a vertical rod, maintaining equilibrium. A block of density `rho` is placed on one side of the pan as shown. Water depth is more then height of the block.

A

Equilibrium will be maintained only if `rholtrho_(W)`

B

equilibrium will be maintained only `rholerho_(W)`

C

Equilibrium will be maintained for all relations between `rho` and `rho_(W)`

D

Equilibrium will not be maintained in all cases.

Text Solution

Verified by Experts

The correct Answer is:
B
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

A cylindrical block of the density rho is partically immersed in a liwuid of density 3rho . The plane surface of the block remains parallel to the surface of the liquid. The height of the block is 60 Cm . The block perform SHM when displaced form its mean position [Use g = 9.8 m//s^(2) ]

A vessel filled with water is kept on a weighing pan and the scale adjusted to zero .A block of mass M and density rho is suspended by a massless spring of spring constant k. This block is submerged inside into the water in the vessel .What is the reading of the scale ?

A wooden cylinder of diameter 4 r, height H and density rho//3 is kept on a hole of diameter 2 r of a tank, filled with water of density rho as shown in the The block in the above question is maintained by external means and the level of liquid is lowered. The height h_(2) when this external force reduces to zero is

A wooden cylinder of diameter 4 r, height H and density rho//3 is kept on a hole of diameter 2 r of a tank, filled with water of density rho as shown in the If height h_(2) of water level is further decreased, then

A non-conducting disc of radius a and uniform positive surface charge density sigma is placed on the ground, with its axis vertical. A particle of mass m and positive charge q is dropped, along the axis of the disc, from a height H with zero initial velocity. The particle has q//m=4 in_0 g//sigma (a) Find the value of H if the particle just reaches the disc. (b) Sketch the potential energy of the particle as a function of its height and find its equilibrium position.

A jar is filled with two non-mixing liquids 1 and 2 haivng densities rho_1 and rho_2 respectively. A solid ball, made of a material of density rho_3 , is dropped in the jar. It comes to equilibrium in the position shown in the figure. Which of the following is true for rho_1 , rho_1 and rho_3 ?

A wooden cylinder of diameter 4 r, height H and density rho//3 is kept on a hole of diameter 2 r of a tank, filled with water of density rho as shown in the If level of liquid starts decreasing slowly, when the level of liquid is at a height h_(1) above the cylinder, the block just start moving up. Then the value of h_(1) is

A cylinderical container of length L is full to the brim with a liquid which has mass density rho . It is placed on a weight scale, the scale reading is w. A light wall ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left Q. if instead of being pushed down by a rod, the ball is held in place by a thin string attached to the bottom of the container as shown on the right what is the tension T is the string? (a). (rhoV-m)g (b). rhoVg (c). mg (d). none of these

A rectangular pipe having cross-sectional area A is closed at one end and at its other end a block having same cross-section is placed so that the system is airtight. In the equilibrium position of the block, the pressure and volume of air enclosed in the pipe and P and V respectively. Prove that the block performs SHM when it is given a small displacement 'x' inward and released. Also find the period of this SHM. Assume the walls to be frictionless and compression of air to be isothermal.

A solid right cylinder of length l stands upright at rest on the bottom of a large tub filled with water up to height h as shown in the figure-I density of material of the cylinder equals to that of water. Now the cylinder is pulled slowly out of water with the help of a thin light inextensible thread as shown in figure-II. Find the work done by the tension force develop in the thread. (a). mgh (b). mgl (c). 0.5 mgl (d). mg(0.5l+h)

ALLEN -ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 2 (One or more than one correct answer)
  1. Water coming out of the mouth of a tap and falling vertically in strea...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  6. An open pan P filled with water of density (rhow) is placed on a verti...

    Text Solution

    |

  7. A small ball is left in a viscous liquid form very much height correct...

    Text Solution

    |

  8. A cubical block of side a and density rho slides over a fixed inclined...

    Text Solution

    |

  9. A space 2.5cm wide between two large plane surfaces is filled with oil...

    Text Solution

    |

  10. A large drop of oil whose density is less than that of water, floats ...

    Text Solution

    |

  11. If the terminal speed of a sphere of gold (density =19.5kg//m^3) is 0....

    Text Solution

    |

  12. A spherical ball is dropped in a long column of viscous liquid. Which ...

    Text Solution

    |

  13. A small sphere of mass m is dropped from a aheight After it has fallen...

    Text Solution

    |

  14. The wires A and B shown in Fig. are made of the same material and have...

    Text Solution

    |

  15. When a capillary tube is dipped in a liquid, the liquid rises to a hei...

    Text Solution

    |

  16. A massless conical flask filled with a liquid is kepth on t a table in...

    Text Solution

    |

  17. The vessel shown in the figure has a two sections of areas of cross-se...

    Text Solution

    |

  18. A liquid flows through a horizontal tube. The velocities of the liquid...

    Text Solution

    |

  19. A vertical U-tube contains a liquid. The total length of the liquid co...

    Text Solution

    |

  20. A cup filled with water has a hole in the side, through which the liqu...

    Text Solution

    |