Home
Class 12
PHYSICS
After 1 alpha and 2 beta emissions....

After `1 alpha` and `2 beta` emissions.

A

mass number reduces by `2`

B

mass number reduces by `6`

C

atomic number reduces by `2`

D

atomic number remains unchanged

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

For a substance the average life for alpha- emission is 1620 years and for beta- emission is 405 years. After how much time the 1//4 of the material remains after alpha and beta emission ?

A radioactive material has mean lives of 1620 years and 660 years for alpha and beta emissions respectively the material decays by simultaneous alpha and beta emission. The time in which (1)/(4)th of the material remains intact is-

A radioactive material has a half life of 600 years and 300 years for alpha and beta emissions respectively. The material decays by simultaneous alpha and beta emissions respectively . The material decays by simultaneously alpha and beta emissions . What is time in which 3/4 th of the material will decay ?

Half lives for alpha and beta emission of a radioacative materila are 16 years and 48 years respectively. When material decays giving alpha and beta emission simultaneously, time in which 3//4^(th) material decays is .

The mean lives of a radioactive substance are 1620 years and 405 years for alpha emission and beta emission respectively. Find out the time during which three fourth of a sample will decay if it is decaying both by alpha -emission and beta -emission simultaneously. (log_e4=1.386).

The mean lives of a radioactive substance are T^(1) and T^(2) for alpha- emission and beta- emission respectively. If it is decaying by both beta- emission and beta - emission simultaneously then find its mean life and decay constant ?

Decrease in atomic number is observed during A) alpha -emission B) beta -emission C) Positron emission D) electron capture

For a substance, the average life for alpha -emission is 1620 years and for beta emission is 405 years. If after (k xx 0.693) years, the one-fourth of the material remains by simultaneous emission, then find k

Which of the following causes the emission of X -rays? a. Electron capture b. gamma -emission c. alpha - emission d. beta -emission

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-NUCLEAR PHYSICS-Exercise
  1. The relationship between distintegration constant (lambda) and half-li...

    Text Solution

    |

  2. Nuclear fission can be explained by

    Text Solution

    |

  3. After 1 alpha and 2 beta emissions.

    Text Solution

    |

  4. Alpha particles are

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  14. The most penetrating radiation out of the following is

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |