Home
Class 12
PHYSICS
During negative B decay, an anti- neutri...

During negative B decay, an anti- neutrino is also emmited along with the ejected electron. Then

A

only linear momentum will be conserved

B

total linear momentum and total anuglar momentum but not total energy will be conserved

C

total linear momentum and total energy but not total angular momentum will be conserved

D

total linear momentum , total angular momentum and total energy will be conserved.

Text Solution

Verified by Experts

The correct Answer is:
d
Promotional Banner

Topper's Solved these Questions

  • NUCLEI

    NCERT FINGERTIPS|Exercise Nuclear Energy|10 Videos
  • NUCLEI

    NCERT FINGERTIPS|Exercise Higher Order Thinking Skills|8 Videos
  • NUCLEI

    NCERT FINGERTIPS|Exercise Mass Energy And Nuclear Binding Energy|9 Videos
  • MOVING CHARGES AND MAGNETISM

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos
  • PRACTICE PAPPER

    NCERT FINGERTIPS|Exercise Practice Paper 3|50 Videos

Similar Questions

Explore conceptually related problems

During a negative beta decay,

During a negative beta -decay

During a negative beta decay:

A neutron intially at rest, decays into a proton, an electron and an antineutrio. The ejected electron has a momentum of p_(1) = 1.4× 10^(-28) kg-m/s and the antineutrino p_(2) = 6.5 ×10^(–27) kg-m/s. Find the recoil speed of the proton if the electron and the antineutrino are ejected along the the same direection.

During beta^(-) -decay, a neutron inside nucleus converts into proton, electron and x . Then the paritcle x is

A neutron initially at rest, decays into a proton, an electron and an antineutrino. The ejected electron has a momentum of 1.4xx10^-26 kg.m/s nd the antineutrino 6.4xx10^27 kgm/s. Find the recoil speed of the proton a. if the electron and the antineutrino are ejected along the same directioin and b. if they are ejected along perpendicular directions. Mass of the proton 1.67xx10^-27 kg.

The beta -decay process, discovered around 1900 , is basically the decay of a neutron (n) , In the laboratory, a proton (p) and an electron (e^(-)) are observed as the decay products of the neutron. Therefore, considering the decay of a neutron as a tro-body dcay process, it was observed that the electron kinetic energy has a continuous spectrum. Considering a three-body decay process i.e., n rarr p + e^(-)+overset(-)v_(e ) , around 1930 , Pauli explained the observed electron energy spectrum. Assuming the anti-neutrino (overset(-)V_(e )) to be massless and possessing negligible energy, and neutron to be at rest, momentum and energy conservation principles are applied. From this calculation, the maximum kinetic energy of the electron is 0.8xx10^(6)eV . The kinetic energy carried by the proton is only the recoil energy. What is the maximum energy of the anti-neutrino?

NCERT FINGERTIPS-NUCLEI-Radioactivity
  1. A sample of a radioactive element has a mass of 10 g at an instant t=0...

    Text Solution

    |

  2. The count rate from 100cm^(3) of a radioactive liquid is c. Some of th...

    Text Solution

    |

  3. The variation of decay rate of two radioactive samples A and B with ti...

    Text Solution

    |

  4. A sample of radioactive material has mass m, decay constant lambda, an...

    Text Solution

    |

  5. Two radioactive substance A and B have decay constants 5 lambda and la...

    Text Solution

    |

  6. Plutonium decays with half life of 24000 years. If plutonium is stored...

    Text Solution

    |

  7. A fraction f1 of a radioactive sample decays in one mean life, and a f...

    Text Solution

    |

  8. The activity of a radioactive sample is measures as N0 counts per minu...

    Text Solution

    |

  9. The number of beta particles emitter by radioactive substance is twice...

    Text Solution

    |

  10. During negative B decay, an anti- neutrino is also emmited along with ...

    Text Solution

    |

  11. Which of the following cannot be emitted by radioactive substances dur...

    Text Solution

    |

  12. A radioactive decay can form an isotope of the original nucleus with t...

    Text Solution

    |

  13. Pick out the incorrect statement from the following .

    Text Solution

    |

  14. Consider alpha-, beta- particles and gamma- rays, each having an energ...

    Text Solution

    |

  15. The electron emitted in beta radiation originates from

    Text Solution

    |

  16. Radioactive .27^60Co is transformed into stable .28^60Ni by emitting t...

    Text Solution

    |

  17. Complete the series .^6He to e^(-) + .^6Li+

    Text Solution

    |

  18. A nucleus of Ux1 has a half life of 24.1 days. How long a sample of Ux...

    Text Solution

    |

  19. An element A decays into element C by a two-step process : A rarr B ...

    Text Solution

    |

  20. The equation 4H^(+) rarr (2)^(4) He^(2+) + 2e bar + 26 MeV represent...

    Text Solution

    |