Home
Class 12
PHYSICS
Two homogeneous spheres A and B of masse...

Two homogeneous spheres `A and B` of masses `m and 2 m` having radii `2 a` and `a` respectively are placed in contact. The ratio of distance of c.m from first sphere to the distance of c.m from second sphere is :

A

a

B

2a

C

3a

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 44

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET SET 46

    NTA MOCK TESTS|Exercise PHYSICS|90 Videos

Similar Questions

Explore conceptually related problems

Two homogeneous spheres A and B of masses m and 2m having radii 2a and a respectively are placed in touch . The distance of the centre of mass from the first sphere is

Two homogeneous spheres P and Q of different materials and masses 1 kg and 2 kg are kept in contact. The radii of A and B are 20 cm and 10 cm respectively. What is the distance of their centre of mass from the centre of A?

Two spheres A and B of radii 17 cm each and having charges of 1 and 2 coulombs respectively are separated by a distance of SO cm. The electric field at a point on the line joining the centres of two spheres is approximately zero at some distance from the sphere A. The electric potential at this point is:

Two lead balls of masses m and 5m having radii R and 2R are separated by 12R . If they attract each other by gravitational force, the distance covered by small sphere before they touch each other is

Two spheres of the same material have radii 1m and 4m and temperatures 4000K,respectively. The ratio of the energy radiated per second by the first sphere to that by the second is

Two spheres of the same material have radii 1m and 4m and temperatures 4000K and 2000K respectively. The ratio of the energy radiated per second by the first sphere to that by the second is

A sphere of mass m moving with a constant velocity hits another stationary sphere of the same mass, if e is the coefficient of restitution, then ratio of speed of the first sphere to the speed of the second sphere after collision will be

Two spheres A and B are charged with the charges of +10 and +20 coulomb respectively and separated by a distance of 80 cm. The electric field at point on the line joining the centres of the two spheres will be zero at a distance from the sphere A :

NTA MOCK TESTS-NTA NEET SET 45-PHYSICS
  1. The ratio of the wavelengths for 2 rarr 1 transition in Li^(++), He^(+...

    Text Solution

    |

  2. An alpha particle and a proton are accelerated from rest by a potentia...

    Text Solution

    |

  3. Two homogeneous spheres A and B of masses m and 2 m having radii 2 a a...

    Text Solution

    |

  4. Three identical spheres lie at rest along a line on a smooth horizonta...

    Text Solution

    |

  5. A particle performing uniform circular motion gas angular momentum L. ...

    Text Solution

    |

  6. The same current I flows in two long parallel conductors at a distance...

    Text Solution

    |

  7. One mole of an ideal monoatomic gas undergoes a cyclic process, as sho...

    Text Solution

    |

  8. In the network shown in figure each resistance is 1Omega . The effecti...

    Text Solution

    |

  9. An aeroplane, in which the distance between the tips of thie wings is ...

    Text Solution

    |

  10. The figure shows a region containing a uniform magnetic field B, which...

    Text Solution

    |

  11. Two non-conducting solid spheres of radii R and 2R, having uniform vol...

    Text Solution

    |

  12. Minimum number of capacitors each of 8 muF and 250 V used to make a co...

    Text Solution

    |

  13. The bob of a pendulum is released from a horizontal position. If the l...

    Text Solution

    |

  14. A point P lies on the axis of a fixed ring of mass M and radius a, at ...

    Text Solution

    |

  15. If 'g' is the potential energy of an object of mass 'm' raised from th...

    Text Solution

    |

  16. A slab consists of two layers of different materials of the same thick...

    Text Solution

    |

  17. A spherical black body with a radius of 12 cm radiates 450 W power at ...

    Text Solution

    |

  18. Which of the following graphs correctly represents the variation of be...

    Text Solution

    |

  19. Figure shows the adiabatic curve for n moles of an ideal gas, the bulk...

    Text Solution

    |

  20. Two long parallel wires are at a distance 2d apart. They carry stead...

    Text Solution

    |