Home
Class 12
PHYSICS
A charge particle 'q' is shot towards an...

A charge particle 'q' is shot towards another charged particle 'Q' which is fixed, with a speed 'v'. It approaches 'Q' upto a closest distance r and then returns. If q were given a speed of '2v' the closest distances of approach would be

A

r

B

2r

C

`(r )/(2)`

D

`( r )/(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - C|53 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - D|13 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - A|47 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - D Assertion-Reason Type Questions|25 Videos

  • GRAVITATION

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - D (ASSERTION-REASON TYPE QUESTIONS)|16 Videos

Similar Questions

Explore conceptually related problems

A charged particle q is shot from a large distance twoards another charged particle Q which is fixed, with speed v. It approaches Q up to as closed distance r and then returns. If q were given a speed 2v, the distasnce of approach would be

A particle of mass m, charge q gt 0 and initial kinetic energy K is projected from infinity towards a heavy nucleus of charge Q assumed to have a fixed position. (a) If the aim is perfect, how close to the centre of the nucleus is the particle when it comes instantaneously to rest ? (b) With a particular imperfect aim, the particle's closest approach to nucleus is twicw the distance determined in (a). Determine speed of particle at the closest distance of approach.

A long straight wire carries a current i. A particle having a positive charge q and mass m, kept at distance x_0 from the wire is projected towards it with speed v. Find the closest distance of approach of charged particle to the wire.

A charged particle of charge 'Q' is held fixed and another charged particle of mass 'm' and charge 'q' (of the same sign) is released from a distance 'r'. The impulse of the force exerted by the external agent on the fixed charge by the time distance between 'Q' and 'q' becomes 2 r is

Q:6DTQ Two particles of mass m and 2m carry a charge q each.Initially the heavier particle is at rest on a smooth horizontal plane and the other is projected along the plane directly towards the first from a distance d with speed u.If the closest distance of approach is (3q^(2)d)/(nq^(2)+4 pi varepsilon_(0)u^(2)d) then find the value of n .

A charge "Q" of mass "m" is at rest on a smooth horizontal plane.Another identical particle is projected with a velocity v towards it from long distance then

Two particles of mass m and 2m carry a charge q each.Initially the heavier particle is at rest on a smooth horizontal plane and the other is projected along the plane directly towards the first from a distance d with speed u .If the closest distance of approach is (3q^(2)d)/(nq^(2)+4 pi e_(0)u^(2)d) then find the value of n .

Figure shows a charge +Q clamped at a point in free space. From a large distance another charge particle of charge -q an.d mass m is thrown toward +Q with an impact parameter d as shown with speed v. Find the distance of closest approach of the two particles.

Two identical particles of mass m carry a charge Q , each. Initially one is at rest on a smooth horizontal plane and the other is projected along the plane directly towards first particle from a large distance with speed v. The closest distance of approach be .

A particle of mass m and charge +q approaches from a very large distance towards a uniformly charged ring ofradius Rand charge, mass same as that of particle, with initial velocity v_(0) along the axis of the ring as shown in the figure-1.420. What is the closest distance of approach between the ring and the particle? Assume the space to be gravity free and frictionless :

AAKASH INSTITUTE-ELECTROSTATIC POTENTIAL AND CAPACITANCE -ASSIGNMENT SECTION - B
  1. In a certain region of space, variation of potential with distance fro...

    Text Solution

    |

  2. Four charges +q, -1, +q and -q are placed in order on the four consecu...

    Text Solution

    |

  3. A charge particle 'q' is shot towards another charged particle 'Q' whi...

    Text Solution

    |

  4. Three charges are placed along x-axis at x = - a x = 0 and x = a as sh...

    Text Solution

    |

  5. Find the charge on capacitor C(3) Given, then C(1) = C(2) and C(3) =...

    Text Solution

    |

  6. If initial charge on all the capacitors were zero , work done by the b...

    Text Solution

    |

  7. While working on a physics project at school physics, lab, you require...

    Text Solution

    |

  8. A parallel plate capacitor with air between the plates has a capacit...

    Text Solution

    |

  9. A capacitor of capacitance C is fully charged by a 200 V battery. It i...

    Text Solution

    |

  10. An infinite number of electric charges each equal to 5 nano coulombs a...

    Text Solution

    |

  11. A pellet carrying a charge of 0.5 coulomb is accelerated through a pot...

    Text Solution

    |

  12. A cylindrical capacitor has has two co-axial cylinders of length 20 cm...

    Text Solution

    |

  13. A charge q is distributed uniformly on the surface of a sold sphere of...

    Text Solution

    |

  14. There is an electric field E in x-direction. If the work done on movin...

    Text Solution

    |

  15. In a region of space , suppose there exists a uniform electric field v...

    Text Solution

    |

  16. ABC is a right anlged triangle situated in a uiform electric field vec...

    Text Solution

    |

  17. A hollow spherical conductor of radius r potential of 100 V at its out...

    Text Solution

    |

  18. A spherical conductor having charge q and radius r is placed at the ce...

    Text Solution

    |

  19. The work which is required to be done to make an arrangement of four p...

    Text Solution

    |

  20. The net capacitance of system of capacitance as shown in the figure be...

    Text Solution

    |