Home
Class 12
PHYSICS
Statement-1: Distance of closest approac...

Statement-1: Distance of closest approach of `alpha` particle to the nucleus is always greater than the size of the nucleus.
Statement-2: Strong nuclear repulsion does not allow `alpha` particle to reach the surface of nucleus.

A

Statement-1 is true, Statement-2 is true and Statement-2 is correct explanation of Statement-1.

B

Statement-1 is true, Statement-2 is true, but Statement-2 is not a correct explanation of Statement-1.

C

Statement-1 is true, but Statement-2 is false

D

Statement-1 is false, but Statement-2 is true.

Text Solution

Verified by Experts

The correct Answer is:
A
Both the statement are true and statement-2 is correct explanation of the statement-1.
Promotional Banner

Topper's Solved these Questions

  • ATOMS AND NUCLEI

    PRADEEP|Exercise Fill in the blank 2|1 Videos

  • ATOMS AND NUCLEI

    PRADEEP|Exercise Multiple choice questions 1|1 Videos

  • ATOMS AND NUCLEI

    PRADEEP|Exercise curiocity quetions 3|1 Videos

  • COMMUNICATION SYSTEMS

    PRADEEP|Exercise MODEL TEST PAPER-2|9 Videos

Similar Questions

Explore conceptually related problems

Write the expression for distance of closest approach for a alpha -particle.

The distance of closest approach of an alpha particle to the nucleus of gold is 2.73 xx 10^(-14) m. Calculate the energy of the alpha particle.

The distance oif closest approach of an alpha-particle fired towards a nucleus with momentum p is r. What will be the distance of closest approach when the momentum of alpha-particle is 2p ?

In the alpha -decay process occuring in different types of nuclei at rest (i) the K.E. of the daughter nucleus is always greater than the K.E. of the alpha -particle (ii) the K.E. of the daughter nucleus is always less than the K.E. of the alpha -particle (iii) the magnitudes of the linear momenta of the alpha -particle and the daughter nucleus are always equal (iv) the daughter nucleus is always in a stable state

Calculate the nearest distance of approach of an alpha -particle of energy 2.5 Me V being scattered by a gold nucleus (Z=79).

PRADEEP-ATOMS AND NUCLEI-Exercise
  1. Assertion : Rydberg's constant varies with mass no. of a given element...

    Text Solution

    |

  2. Assertion: In the process of nuclear fission, the fragments emit two o...

    Text Solution

    |

  3. Radioactivity of 108 undecayed radioactive nuclei of half life of 50 d...

    Text Solution

    |

  4. Assertion : In a radioactive disintegration, an electron is emitted by...

    Text Solution

    |

  5. Assertion : Fragments produced in the fission of U^(235) are active. ...

    Text Solution

    |

  6. Electron capture occurs more often than positron emission in heavy ele...

    Text Solution

    |

  7. Assertion : An electron and positron can annihilate each other creatin...

    Text Solution

    |

  8. Assertion: Forces acting between proton-proton (f(pp)), proton -neutro...

    Text Solution

    |

  9. Statement -1 : Large angle scattering of alpha particles led to the di...

    Text Solution

    |

  10. Statement-1: Impact parameter for scattering of alpha particles by 180...

    Text Solution

    |

  11. Statement-1: Distance of closest approach of alpha particle to the n...

    Text Solution

    |

  12. Statement-1: Nuclei of different atom have same size Statement-2: R=...

    Text Solution

    |

  13. Statement-1: Density of nuclear matter is same for all nuclei Statem...

    Text Solution

    |

  14. Statement-1: 1am u.=933MeV Statement-2: It follows form E=mc^(2)

    Text Solution

    |

  15. Statement -1: One kg of coal, on burning, produces energy =10^(7)"joul...

    Text Solution

    |

  16. Statement-1: After ten half life lives, the amount of a radioactive el...

    Text Solution

    |

  17. Statement-1: No law is violated in the nuclear reaction .(0)n^(1)to.(1...

    Text Solution

    |

  18. Statement-1: Half life of tritium is 12.5 yr. The fraction of tritium ...

    Text Solution

    |

  19. This question contains Statement - 1 and Statement -2 Of the four choi...

    Text Solution

    |

  20. Statement-1:A nucleus having energy E(1) decays by beta^(-) emission t...

    Text Solution

    |