Home
Class 11
PHYSICS
Six particles each of massm are placed a...

Six particles each of mass`m` are placed at the corners of a regular hexagon of edge length `a`. If a point mass `m_0` is placed at the centre of the hexagon, then the net gravitational force on the point mass is

A

`(6Gm^(2))/(a^(2))`

B

`(6Gmm_(0))/(a^(2))`

C

zero

D

`(6Gm)/(a^(4))`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    NARAYNA|Exercise LEVEL I(C.W.)|51 Videos

  • GRAVITATION

    NARAYNA|Exercise LEVEL II (C.W.)|38 Videos

  • GRAVITATION

    NARAYNA|Exercise EXERCISE -IV|40 Videos

  • FRICTION

    NARAYNA|Exercise Passage type of questions I|6 Videos

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-III(C.W)|52 Videos

Similar Questions

Explore conceptually related problems

Six identical particles each of mass m are arranged at the corners of a regular hexagon of side length L . If the mass of one of the particle is doubled, the shift in the centre of mass is

Six charges are placed at the corner of a regurlar hexagon as shown . If an electron is placed at its centre O, force on it will be :

Five identical point charges +Q are placed at the five corners of a regular hexagon of edge length a. One corner is empty. Electric field intensity at the centre of the hexagon is

Six s imilar magnetic poles are placed on six corners of a regular hexagon of side 10 cm . A south pole of strength 10 Am is placed at the centre of hexagon. Find the magnetic force on the south pole.

A point mass of 10 kg is placed at the centre of earth. The weight of the point mass is

Six particles each of mass 'm' are placed at six verties A,B,C,D,Eand F of a regular hexagon of side 'a'. A seventh particle of mass 'M' is kept at center 'O' of the hexagon. (a)Find net force on 'M'. (b)Find net force on 'M' if particles at A is removed. (c) Find net force on 'M' if particles at A and C are removed .

Three equal masses each of mass 'm' are palced at the three corners of an equilateral of side a If a fourth particle of equal mass is placed at the centre of triangle then net force acting on it is equal to .

Six negative equal charge are placed at the vertical of a regular hexagon . 6q charge is placed at the centre of the hexagon . Find the electric dipole moment of the system.

NARAYNA-GRAVITATION-C.U.Q
  1. Two equal masses separated by a distance d attract each other with a f...

    Text Solution

    |

  2. Which of the following is the evidence to show that there must be forc...

    Text Solution

    |

  3. Six particles each of massm are placed at the corners of a regular hex...

    Text Solution

    |

  4. If suddenly the gravitational force of attraction between earth and sa...

    Text Solution

    |

  5. If the speed of rotation of earth about its axis increases, then the w...

    Text Solution

    |

  6. The ratio of accleration due to gravity at a depth h below the surface...

    Text Solution

    |

  7. If the gravitational force of earth suddenly disappears, then

    Text Solution

    |

  8. Read the following statements : S(1) : An object shall weigh more at...

    Text Solution

    |

  9. Average density of the earth

    Text Solution

    |

  10. A person will ge more quantity of matter in kg-wt at

    Text Solution

    |

  11. A pendulum clock which keeps correct time at the surface of the earth ...

    Text Solution

    |

  12. Two identical trains A and B move with equal speeds on parallel tracks...

    Text Solution

    |

  13. Assuming the earth to be a sphere of uniform density, the acceleration...

    Text Solution

    |

  14. If earth were to rotate faster than its present speed, the weight of a...

    Text Solution

    |

  15. The time period of a simple pendulum at the centre of the earth is

    Text Solution

    |

  16. The radii of two planets are respectively R(1) and R(2) and their dens...

    Text Solution

    |

  17. If the means radius of earth is R, its angular velocity is omega and t...

    Text Solution

    |

  18. If R= radius of the earth and g= acceleration due to gravity on the su...

    Text Solution

    |

  19. If R= radius of the earth and g= acceleration due to gravity on the su...

    Text Solution

    |

  20. Earth is flattened at the poles and budges at the eqator. This is due ...

    Text Solution

    |