Home
Class 11
PHYSICS
If air is blown under one of the pans of...

If air is blown under one of the pans of a physical balance in equilibrium, then the pan will

A

rises up

B

remains in the same position

C

lowers down

D

rises or lowers depending upon the velocity of air blown

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise C.U.Q (TORRICELLI.S THEOREM AND VISCOSITY)|29 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise C.U.Q(POISEUILLE.S EQUATION)|44 Videos
  • MECHANICAL PROPERTIES OF FLUIDS

    NARAYNA|Exercise C.U.Q(PRESSURE, FORCE OF BUOYANCY, LAWS OF FLOATATION)|17 Videos
  • MATHEMATICAL REVIEW & PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|13 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

Similar Questions

Explore conceptually related problems

If air is blown under one of the pans of a phusical balance in equilbrium, then the pan will

When a body is weighed successively in the two pans of a physical balance with unequal arms, the apparent masses are found to be M_(1) and M_(2) . Show that the length of the arms are in the ratio sqrt(M_(1)): sqrt(M_(2)) .

At wood machine is attached below the left hand pan of a physical balance while equal weight (M+m) g is placed in the right hand pan. The beam is horizontal when the masses M and m on the left hand side are braked What will happen if the masses M and m are unbraked on the left hand side?

A 5- kg body is suspendel from a spring - balance , and an identical body is balanced on a pan of a physical balance . If both the balances are kept in an elevator , then what would happen in each case when the elevator is moving with an upward acceleration ?

A body of mass m falls from a height h on to the pan of a spring balance, figure, The masses of the pan and spring are negligible. The spring constant of the spring is k. The body gets attached to the pan and starts executing S.H.M. in the vertical direction. Find the amplitude and energy of oscillation.

What is effecto on the equilibrium of a physical balance when air is blown below one pan?

A body weighs 6gms when placed in one pan and 24gms when placed on the other pan of a false balance. If the beam is horizontal when both the pans are empty, the true weight of the body is :

NARAYNA-MECHANICAL PROPERTIES OF FLUIDS-C.U.Q (EQUATION OF CONTINUITY, BERNOULLI.S THEOREM)
  1. The liquid flow is most stream lined when

    Text Solution

    |

  2. If the flow is stream lined then Reynolds number is less than

    Text Solution

    |

  3. The rate of flow of the liquid is the product of

    Text Solution

    |

  4. The equation of continuity leads to

    Text Solution

    |

  5. The volume of a liquid flowing per second out of an orifice at the bot...

    Text Solution

    |

  6. Water is flowing in a pipe of uniform cross section under constant pre...

    Text Solution

    |

  7. What flows through a horizontal pipe of radius r at a speed V. if the ...

    Text Solution

    |

  8. A liquid is under stream lined motion through a horizontal pipe of non...

    Text Solution

    |

  9. A non-viscous liquid is flowing through a horizontal pipe as shown in ...

    Text Solution

    |

  10. Bernoulli's theorem is applicable in the case of

    Text Solution

    |

  11. If air is blown under one of the pans of a physical balance in equilib...

    Text Solution

    |

  12. If air blown through the space between a calendar suspended from a nai...

    Text Solution

    |

  13. A spinning ball is moving in a direction opposite to the direction of ...

    Text Solution

    |

  14. The dynamic lift of an aeroplane is based on

    Text Solution

    |

  15. A gale is on a house. The force on the roof due to the gale is

    Text Solution

    |

  16. A train goes past a person standing at the edge of a platform at high ...

    Text Solution

    |

  17. The velocity distribution curve of the stream line flow of a liquid ad...

    Text Solution

    |

  18. Water stands at level A in the arrangement shown in figure. If a jet o...

    Text Solution

    |

  19. The vertical sections of the wing of a fan are shown. Maximum upthrust...

    Text Solution

    |

  20. A car moving on a road when overtaken by a bus

    Text Solution

    |