Home
Class 11
PHYSICS
A light spring balance hangs from the ho...

A light spring balance hangs from the hook of the other light spring balance and a block of mass M kg hangs from the former one. Then, the true statement about the scale reading is :

A

Both the scale read M kg each.

B

The scale of the lower one reads M kg and of the upper one zero.

C

The reading of the two scales can be anything but the sum of the readings will be M kg.

D

Both the scales read `M//2 kg`.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Centre of mass

    MODERN PUBLICATION|Exercise Exercise|30 Videos

  • Dynamics of Circular Motion

    MODERN PUBLICATION|Exercise Exercise|81 Videos

Similar Questions

Explore conceptually related problems

A steel wire of mass mu per unit length with a circular cross section has a radius of 0.1 cm. The wire is of length 10 m when measured lying horizontal, and hangs from a hook on the wall. A mass of 25 kg is hung from the free end of the wire. Assuming the wire to be uniform and lateral strains < < longitudinal strains, find the extension in the length of the wire. The density of steel is 7860 kg m^-3 (Young's modulues Y = 2 xx 10^11 N m^-2)

A bird is in a wire cage hanging from a spring balance.Is the reading indicated on the balance,when the bird is flying out in the cage greater than ,less than or the same as that when the bird is sitting in the cage ?Explain.

If two ends of a spring balance are pulled each by a force of 10 kg. wt. What will be the reading of the balance?

Shown in the figure a spring fixed at the bottomm end of all incline of inclination 37^@ . A small block of mass 2 kg starts slipping down the incline form a point 4.8 m aaway from the spring. The block compresses the spring by 20 cm, stops momentarily and then rebounds through a distance of 1 m up the incline. Find the spring constant of the spring Take g = 10 ms^-2

Shown in the figure a spring fixed at the bottomm end of all incline of inclination 37^@ . A small block of mass 2 kg starts slipping down the incline form a point 4.8 m aaway from the spring. The block compresses the spring by 20 cm, stops momentarily and then rebounds through a distance of 1 m up the incline. Find the friction coefficient between the palne

The two parallel circular loops of wire shown in fig each have a radius R = 20 cm and are separated by a distance a = 0.5 cm. The bottom loop is held fixed and the top loop hangs from one end of the arm of an equal arm balance. Since a is much smaller than R, the magnetic field produced by one loop at the other is practically the same as if both were long straight wires. if the current in each loop is 20 A. How much additional mass m must be added to the right-hand pan of the balance to keep the loops separated by 0.5 cm, when the currents are turned on?

The two parallel circular loops of wire shown in fig each have a radius R = 20 cm and are separated by a distance a = 0.5 cm. The bottom loop is held fixed and the top loop hangs from one end of the arm of an equal arm balance. Since a is much smaller than R, the magnetic field produced by one loop at the other is practically the same as if both were long straight wires. if the curret in each loop is 20 A, how big is the force of attraction of one loop for the other?

A stretching force of 1 N is applied at one end of a spring balance and an equal sretching force is applied at the other end at the same time. The reading on the balance will be

MODERN PUBLICATION-Competitive Exam Question-Exercise
  1. A block is kept on a frictionless inclined surface with angle of incli...

    Text Solution

    |

  2. A lift is moving down with acceleration a. A man in the lift drops a b...

    Text Solution

    |

  3. A light spring balance hangs from the hook of the other light spring b...

    Text Solution

    |

  4. A spring balance is attached to the ceiling of a stationary lift. A ma...

    Text Solution

    |

  5. Three forces start acting simultaneously on a particle moving with vel...

    Text Solution

    |

  6. When forces F1,F2 and F3 are acting on a particle of mass m such that ...

    Text Solution

    |

  7. Three identical blocks of masses m=2kg are drawn by a force F=10.2N wi...

    Text Solution

    |

  8. Two masses m1=5 kg and m2=4.8kg tied to a string are hanging over a li...

    Text Solution

    |

  9. A light string passing over a smooth light pulley connects two blocks ...

    Text Solution

    |

  10. A marble block of mass 2 kg lying on ice, when given a velocity of 6 m...

    Text Solution

    |

  11. A block rests on a rough inclined plane making an angle of 30^@ with t...

    Text Solution

    |

  12. A horizontal force of 10 N is necessary to just hold a block stationar...

    Text Solution

    |

  13. The upper half of an inclined plane with inclination theta is perfectl...

    Text Solution

    |

  14. A smooth block is released at rest on a 45^@ incline an dthen slides a...

    Text Solution

    |

  15. When a force of constant magnitude always acts perpendicular to the mo...

    Text Solution

    |

  16. An annular ring with inner and outer radii R1 and R2 is rolling withou...

    Text Solution

    |

  17. The minimum velocity (in m s^(-1)) with which a car driver must traver...

    Text Solution

    |

  18. A point P moves in counter-clockwise direction on a circular path as s...

    Text Solution

    |

  19. For a particle in circular motion, the acceleration veca at a point (R...

    Text Solution

    |

  20. A ball is dropped from a spacecraft revolving around the earth at a he...

    Text Solution

    |