Home
Class 12
PHYSICS
An oil drop of mass m and charge +q is b...

An oil drop of mass m and charge +q is balanced in vaccum by a uniform electric field of intensity `E`. the direction of this field should be

A

Vertically upwards

B

verticallu down

C

horizontal perpendicular to the direction of motion of the elctron beam

D

inclined at `45^(0)` to the horizontal

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ATOMIC PHYSICS

    NARAYNA|Exercise LEVEL-I (C.W)|23 Videos

  • ATOMIC PHYSICS

    NARAYNA|Exercise LEVEL-II (C.W)|16 Videos

  • ATOMIC PHYSICS

    NARAYNA|Exercise LEVEL-II (H.W)|14 Videos

  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - II(H.W)|13 Videos

  • ATOMS

    NARAYNA|Exercise EXERCISE -4|47 Videos

Similar Questions

Explore conceptually related problems

A particle of mass m and charge q is released from rest in uniform electric field of intensity E. Calculate the kinetic energy it attains afect moving a distance x between the plates.

An oil drop of radius r carrying a charge q remain stationary in the presence of electric field of intensity E. If the density of oil rho , then

An electron of mass m and charge q is accelerated from rest in a uniform electric field of strength E. The velocity acquired by it as it travels a distance l is

A charge q is projected into a uniform electric field E ,work done when it moves a distance y in the direction of bar(E) is

An electric dipole has the magnitude of its charge as q and its dipole moment is p . It is placed in a uniform electric field E . If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

NARAYNA-ATOMIC PHYSICS-C.U.Q
  1. Cathode rays are made to pass between the poles of a magnet as shown i...

    Text Solution

    |

  2. In which of the following field cathod rays show minimum deflection

    Text Solution

    |

  3. An oil drop of mass m and charge +q is balanced in vaccum by a uniform...

    Text Solution

    |

  4. An oil drop of mass m and falls through a medium that offers a viscous...

    Text Solution

    |

  5. An oil drop of mass m fall through a viscous medium. The viscous drag ...

    Text Solution

    |

  6. An oil drop of mass m fall through air with a terminal velocity in the...

    Text Solution

    |

  7. If gE and gM are the acceleration due to gravity on the surfaces of th...

    Text Solution

    |

  8. In millikan's oil drop method, electron charge is accurately measured ...

    Text Solution

    |

  9. In Millilan's experiment , the oil drop acquire charge by

    Text Solution

    |

  10. If V is Velocity of oil drop , than according to stok's law, the visco...

    Text Solution

    |

  11. An oil drop of radius r carrying a charge q remain stationary in the p...

    Text Solution

    |

  12. The important conclusion given by millikan's experiment about the char...

    Text Solution

    |

  13. Coulomb 's law correctly describe the electric force is that (pick the...

    Text Solution

    |

  14. Is the probability of backward scattering (i.e. scattering of a-partic...

    Text Solution

    |

  15. An electron with kinetic energy 5eV is incident on a hydrogen atom in ...

    Text Solution

    |

  16. The angular momentum of the alpha- particles which are scattered throu...

    Text Solution

    |

  17. The Incorrect statement regarding Rutherford's atomic model is

    Text Solution

    |

  18. a-particles are

    Text Solution

    |

  19. In scattering experiment , the force that scatters particles is

    Text Solution

    |

  20. Bohr'satom model assumes

    Text Solution

    |