Home
Class 11
PHYSICS
A cork is submerged in water by a spring...

A cork is submerged in water by a spring attached to the bottom of a bowl. When the bowl is kept in an elevator moving with acceleration downwards, the length of spring.

A

Increases

B

Decreases

C

Remains unchanged

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • FLUID MECHANICS

    ERRORLESS |Exercise Fluid Laq|66 Videos

  • FLUID MECHANICS

    ERRORLESS |Exercise Critical Thinking|14 Videos

  • FLUID MECHANICS

    ERRORLESS |Exercise Fluid Mechanics|19 Videos

  • ELASTICITY

    ERRORLESS |Exercise Self Evaluation Test|11 Videos

  • FRICTION

    ERRORLESS |Exercise MCQ S|125 Videos

Similar Questions

Explore conceptually related problems

A block is fully submerged in a vessel filled with water by a spring attached to the bottom of the vessel. In equilibrium position spring is compressed. If the vessel now moves downwards with an acceleration a(lt g) . What happens to the length of the spring.?

A spring of force constant 200Nm^(-1) has a block of mass 10 kg hanging at its one end and the other end of the spring is attached to the celling of an elevator. The elevator is rising upwards with an acceleration of g/4 and the block is in equilibrium with respect to the elevator . when the acceleration of the elevator suddenly ceases , the block starts oscillating . What is the amplitude (in m) of these oscillations ?

A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49N, when the lift is stationary. If the lift moves downward with an acceleration of 5m//2^2 , the reading of the spring balance will be

An iron sphere is suspended with a spring. The length of the spring increases. When the sphere is completely in water, the extension in the length of the spring decreases. Why does it happen so?

A spring of spring constant 200N//m has a block of mass 1kg hanging at its one end and other end of spring is attached to ceiling of an elevator. The elevator is rising upwards with an acceleration g//3 . What should be the angular frequency and elongation during the time when the elevator is accelerating?

A spring of spring constant 200 N//m has a block of mass 1 kg hanging at its one end and form the other and the spring is attached to a celling of an elevator. The elevator rises upwards with an acceleration of g//3 . When acceleration is suddenly ceased , then what should be the angular frequency and elongationduring the time when the elevator is accelerating?

One end of a spring of force constant k_1 is attached to the ceiling of an elevator. A block of mass 1.5kg is attached to the other end. Another spring of force constant k_2 is attached to the bottom of the mass and to the floor of the elevator as shown in figure. At equilibrium, the deformation in both the spring is equal and is 40cm . If the elevator moves with constant acceleration upward, the additional deformation in both the spring is 8cm . Find the elevator's accelerationn ( g=10ms^-2 ).

An engineer is designing a spring to be placed at the bottom of an elevator shaft, if the elevator cable should break at a height h above the top of the spring, calculate the required value of the spring constant k, so that passsengers undergo an acceleration of no more than 10 g when brought to rest, Let M be the total mass of the elevator and passengers

ERRORLESS -FLUID MECHANICS-Pascal s Law and Archmidies Principle
  1. A silver ingot weighing 2.1 kg is held by a string so s to be complete...

    Text Solution

    |

  2. A sample of metal weights 210 grams in air 180 grams n water and 120 g...

    Text Solution

    |

  3. Two solids A and B floats in water. It is observed that A floats with ...

    Text Solution

    |

  4. The fraction of a floating object of volume V(0) and density d(0) abov...

    Text Solution

    |

  5. Pressure applied to an enclosed fluid is transmitted undiminished to e...

    Text Solution

    |

  6. A block of steel of size 5 cm xx 5cm xx 5cm is weighed in water. If th...

    Text Solution

    |

  7. A body is just floating on the surface of a liquid. The density of the...

    Text Solution

    |

  8. A cork is submerged in water by a spring attached to the bottom of a b...

    Text Solution

    |

  9. A solid sphere of density eta (gt 1) times lighter than water is suspe...

    Text Solution

    |

  10. A hollow sphere of volume V is floating on water surface with half imm...

    Text Solution

    |

  11. A rectangular block is 5 cm xx 5 cm xx 10 cm in size. The block is fl...

    Text Solution

    |

  12. A ball whose density is 0.4 xx 10^3 kg//m^3 falls into water from a h...

    Text Solution

    |

  13. Two solids A and B float in water. It is observed that A floats with ...

    Text Solution

    |

  14. A boat carrying steel balls is floating on the surface of water in a t...

    Text Solution

    |

  15. Two pieces of metal when immersed in a liquid have equal upthrust on t...

    Text Solution

    |

  16. A wooden sylinder floats vertically in water with half of its length i...

    Text Solution

    |

  17. A candle of diameter d is floating on a liquid in a cylindrical contai...

    Text Solution

    |

  18. An ice block contains a glass ball when the ice melts within the water...

    Text Solution

    |

  19. A large ship can float but a steel needle sinks because of

    Text Solution

    |

  20. The construction of a submarine is based on:

    Text Solution

    |