Home
Class 10
PHYSICS
It is observed that: alpha particle...

It is observed that:
alpha particles and beta particles are deflected by an electric or magnetic field.
Explain observations.

Text Solution

Verified by Experts

Alpha particles are nothing but helium nuclei. They carry a positive chargé (equivalent to 2 electronic charges). Therefore, they are deflected by an electric or a magnetic field in the sense in which a positively charged particle would be deflected by these fields. Beta particles are nothing but electrons. They carry a negative charge (équivalent to the charge of an electron). Therefore, they are deflected by an electric or a magnetic field in the sense in which a negatively charged particle would be deflected by these fields.
Promotional Banner

Topper's Solved these Questions

  • SAMPLE QUESTION PAPER 4

    ICSE|Exercise SECTION B|38 Videos

  • SAMPLE QUESTION PAPER 2

    ICSE|Exercise SECTION-B|32 Videos

  • SAMPLE QUESTION PAPER 5

    ICSE|Exercise SECTION B|45 Videos

Similar Questions

Explore conceptually related problems

It is observed that: gamma rays are not deflected by either an electric or a magnetic field. Explain observations.

Can a photon be deflected by an electric field ? By a magnetic field ?

Can an electromagnetic wave be deflected by an electric field? By a magnetic field ?

Can an electromagnetic wave be deflected by an electric field? By a magnetic field ?

Explain why alpha and beta particles are deflected in an electric or a megnetic field, but gamma rays are not deflected in such a field. [Hint : alpha and beta particles are changed, but gamma rays are uncharged]

A charged particle goes undeflected in a region containing electric and magnetic field. It is possible that

In scattering experiment , alpha -particles were deflected by

If a charged particle goes unaccelerated in a region containing electric and magnetic fields,

If a charged particle goes unaccelerated in a region containing electric and magnetic fields,

The cyclotron is a device which is used to accelerate charged particles such as protons, deutrons, alpha particles, etc. to very high energy. The principle on which a cyclotron works is based on the fact that an electric field can accelerate a charged particle and a magnetic field can throw it into a circular orbit. A particle of charge +q experiences a force qE in an electric field E and this force is independent of velocity of the particle. The particle is accelerated in the direction of the magnetic field. On the other hand, a magnetic field at right angles to the direction of motion of the particle throws the particle in a circular orbit in which the particle revolves with a frequency that does not depend on its speed. A modest potential difference is used as a sources of electric field. If a charged particle is made to pass through this potential difference a number of times, it will acquire an enormous by large velocity and hence kinetic energy. Which of the following cannot be accelerated in a cyclotron?

ICSE-SAMPLE QUESTION PAPER 4 -SECTION B
  1. A cell is sending current in an external circuit. How does the termina...

    Text Solution

    |

  2. Name the material used for filament of an electric bulb,

    Text Solution

    |

  3. A ray of light travels from water to air as shown in the diagram given...

    Text Solution

    |

  4. A ray of light travels from water to air as shown in the diagram given...

    Text Solution

    |

  5. It is observed that: alpha particles and beta particles are defle...

    Text Solution

    |

  6. It is observed that: gamma rays are not deflected by either an el...

    Text Solution

    |

  7. How is the transference of heat energy by radiation prevented in a cal...

    Text Solution

    |

  8. You have a choice of three metals A, B and C, of specific heat capacit...

    Text Solution

    |

  9. A fuse is rated 8 A. Can it be used with an electrical appliance rated...

    Text Solution

    |

  10. Name two safety devices which are connected to the live wire of a hous...

    Text Solution

    |

  11. The diagram below shows a point source P inside a water container. Fou...

    Text Solution

    |

  12. The diagram below shows a point source P inside a water container. Fou...

    Text Solution

    |

  13. Among alpha, beta and gamma-rays, which is the most penetrating?

    Text Solution

    |

  14. Arrange alpha , beta and gamma rays in ascending order with respect t...

    Text Solution

    |

  15. Arrange the alpha, beta and gamma radiation in ascending order of thei...

    Text Solution

    |

  16. State two factors on which the speed of a wave travelling in a medium ...

    Text Solution

    |

  17. Give one application of echo.

    Text Solution

    |

  18. A nucleus of stable phosphorus has 15 protons and 16 neutrons. (a) W...

    Text Solution

    |

  19. A nucleus of stable phosphorus has 15 protons and 16 neutrons. (a) W...

    Text Solution

    |

  20. A nucleus of stable phosphorus has 15 protons and 16 neutrons. (a) W...

    Text Solution

    |