Home
Class 12
PHYSICS
A radioactive nucleus X converts into n...

A radioactive nucleus X converts into nucleus Y by emitting `B^+`. If atomic masses of X and Y are `M_X` and `M_Y` then Q value of reaction will be :-

A

`Q=M_x C^2`

B

`Q = (M_X - M_Y - M_e) C^2`

C

`Q=(M_X - M_Y)C^2`

D

`Q = (M_X-M_Y-2m_e)C^2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The half lives of radioactive elements X and Y are 3 mintue and 27 minute respectively. If the activities of both are same, then calculate the ratio of number of atoms of X and Y.

A radiaoactive nucleus (initial mass number A and atomic number Z emits 3 alpha - particles and 2 positrons The ratio of number of neutrons to that of proton in the final nucleus will be

A radioactive nucleus X decay to a nucleus Y with a decay with a decay Concept lambda _(x) = 0.1s^(-1) , gamma further decay to a stable nucleus Z with a decay constant lambda_(y) = 1//30 s^(-1) initialy, there are only X nuclei and their number is N_(0) = 10^(20) . Set up the rate equations for the population of X , Y and Z The population of Y nucleus as a function of time is given by N_(y) (1) = N_(0) lambda_(x)l(lambda_(x) - lambda_(y))( (exp(- lambda_(y)t)) Find the time at which N_(y) is maximum and determine the populations X and Z at that instant.

A nucleus of mass M is initially at rest.It absorb neutron having m_(N) rest mass compound nucleus divided in two nucleus of m_(1) and 5 m_(1) .If wavelength of nucleus with mass m_(1) is lambda ,then wavelength of other nucleus will be…..

If x= 5 and y=2 find the values of : (x^(y)+ y^(x) )

If (x+1, y-2)=(3,1), find the values of x and y.

If a,b,c are in G.P and A.M of a and b is x and A.M. of b and c is y then…….

ALLEN -TEST PAPER 3-PHYSICS
  1. A radioactive element X disintegrates successively as under If...

    Text Solution

    |

  2. If 20 gm of a radioactive substance due to radioactive decay reduces t...

    Text Solution

    |

  3. A radioactive nucleus X converts into nucleus Y by emitting B^+. If a...

    Text Solution

    |

  4. In the given radioactive disintegration series .(92)^(235)U rarr(82)...

    Text Solution

    |

  5. The initial count rate for a radioactive source was found to be 1600 c...

    Text Solution

    |

  6. 1 gram of a radioactive element reduces to 1/3 gram at the end of 2 d...

    Text Solution

    |

  7. The radius of the nucleus of ""(8)O^(16) is 3 × 10^(–15) m. Its densit...

    Text Solution

    |

  8. The ratio of the radii of the nuclei ""(13)Al^(27) and ""(52)Te^(125) ...

    Text Solution

    |

  9. 200 MeV of energy is obtained in the fission of one nucleus of U^(235...

    Text Solution

    |

  10. The binding energy per nucleon of O^16 is 7.97 MeV and that of O^17 is...

    Text Solution

    |

  11. A particle is projected at an angle 60^@ from Horizon from ground with...

    Text Solution

    |

  12. The angle of projection at which the horizontal range and maximum heig...

    Text Solution

    |

  13. A particle is projected from ground with initial velocity 3hati + 4hat...

    Text Solution

    |

  14. An aeroplane flying 490 m above the ground level at 100 m/s, releases ...

    Text Solution

    |

  15. A positively charged body is brought near to bob of an uncharged gold ...

    Text Solution

    |

  16. When a soap bubble is charged :-

    Text Solution

    |

  17. A charge Q1 exerts some force on a second charge Q2. If a 3rd charge Q...

    Text Solution

    |

  18. Two particles A and B having equal charges are placed at distance d ap...

    Text Solution

    |

  19. An infinite number of charges, each of magnitude q, are placed along x...

    Text Solution

    |

  20. Two pitch balls carrying equal charges are suspended from a common poi...

    Text Solution

    |