Home
Class 12
PHYSICS
Alpha particles are...

Alpha particles are

A

`2` free protons

B

helium atoms

C

singly ionised helium atoms

D

doubly ionised helium atoms

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NEET 2024

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise QUESTION|50 Videos

  • OPTICS AND OPTICAL INSTRUMENTS

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise All Questions|87 Videos

Similar Questions

Explore conceptually related problems

A proton and an alpha particle are accelerated through the same potential difference. The ratio of the wavelengths associated with the proton to that associated with the alpha particle is

The (B.E)/(A) for deutron and an alpha -particle are X_(1) and X_(2) respectively. The energy released alpha -particle is

The alpha -particle are

Alpha particle is

alpha -particles and beta -particles

alpha -particles and gamma -rays .

alpha -particles carries

A proton and and alpha - particle are accelerated through a potential difference of 100 V . The ratio of the wavelength with the proton to that associated to that associated with an alpha - particle is

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-NUCLEAR PHYSICS-Exercise
  1. Nuclear fission can be explained by

    Text Solution

    |

  2. After 1 alpha and 2 beta emissions.

    Text Solution

    |

  3. Alpha particles are

    Text Solution

    |

  4. Complete the equation for the following fission process ""92 U^235 ""0...

    Text Solution

    |

  5. A nucleus ""n X^m emits one alpha and one beta particles. The resultin...

    Text Solution

    |

  6. Atomic weight of boron is 10.81 and it has two isotopes ""5 B^10 and "...

    Text Solution

    |

  7. Half-life of a radioactive substance A and B are, respectively, 20 min...

    Text Solution

    |

  8. In a fission reaction ""92^236 U rarr ^117 X + ^117Y + n + n, the bind...

    Text Solution

    |

  9. A free neutron decays into a proton, an electron and

    Text Solution

    |

  10. The satble nucleus that has a radius half that of Fe^(56) is

    Text Solution

    |

  11. Which of the following is used as a moderator in nuclear reactors?

    Text Solution

    |

  12. The activity of a radioactive sample is measured as 9750 counts per mi...

    Text Solution

    |

  13. The most penetrating radiation out of the following is

    Text Solution

    |

  14. A nucleus ruptures into two nuclear parts, which have their velocity r...

    Text Solution

    |

  15. The count rate of a Geiger Muller counter for the radiation of a radio...

    Text Solution

    |

  16. What is the respective number of alpha and beta particles emitted in t...

    Text Solution

    |

  17. The mass number of He is 4 and that for suphur is 32. The radius of su...

    Text Solution

    |

  18. Heavy water is used as moderator in a nuclear reactor. The function of...

    Text Solution

    |

  19. If the binding energy per nucleon in ""(3)Li^(7) and ""(2)He^(4) nucle...

    Text Solution

    |

  20. Energy released in the fission of a single ""92 U^235 nucleus is 200 M...

    Text Solution

    |