Home
Class 12
PHYSICS
The wavelength of de-Broglie wave associ...

The wavelength of de-Broglie wave associated with a thermal neutron of mass `m` at absolute temperature `T` is given by (here, `k` is the Boltzmann constant)

A

`h/sqrt(mKT)`

B

`h/sqrt(2mKT)`

C

`h/sqrt(3mKT)`

D

`h/2sqrt(mKT)`

Text Solution

Verified by Experts

The correct Answer is:
C
`lambda=h/p=h/(2mKE)=h/sqrt(2m(3/2KT))=h/sqrt(3mKT)`
Where `KE` is kinetic energy and `K` is Boltzman's constant
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE

    NARAYNA|Exercise LEVEL-VI|21 Videos

  • DUAL NATURE

    NARAYNA|Exercise LEVEL-I(H.W)|7 Videos

  • DUAL NATURE

    NARAYNA|Exercise NCERT BASED QUES.|26 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NARAYNA|Exercise ASSERTION AND REASON|15 Videos

  • ELECTRIC CHARGES AND FIELDS

    NARAYNA|Exercise EXERCISE -4|43 Videos

Similar Questions

Explore conceptually related problems

The wavelength of de-Broglie wave associated with a thermal neutron of mass m at absolute temperture T is given by (here, k is the Boltzmann constant)

The wavelength of de-Brogile waves associted with neutrons at room temperature T K is

De Broglie wavelength lambda associated with neutrons is related with absolute temperature T as

What is de-Broglie wavelength of an atom of mass m, moving at absolute temperature TK.

De Broglie wavelength of 0.05 eV thermal neutron is

The mean transitional kinetic energy of a perfect gas molecule at absolute temperature T is ( k is the Boltzmann constant)

The wavelength lambda of de Broglie waves associated with an electron (mass m , charge) accelerated through a potential difference of V is given by ( h is planck's constant):

NARAYNA-DUAL NATURE-LEVEL-V
  1. The wavelength lambda of de Broglie waves associated with an electron ...

    Text Solution

    |

  2. Two particles of masses m and 2m have equal kinetic energies. Their de...

    Text Solution

    |

  3. The wavelength of de-Broglie wave associated with a thermal neutron of...

    Text Solution

    |

  4. A proton and an electron are accelerated by the same potential differe...

    Text Solution

    |

  5. Photoelectric effect supports quantum nature of light because (a) th...

    Text Solution

    |

  6. When photons of energy 4.25 eV strike the surface of metal A, the ejec...

    Text Solution

    |

  7. The graph between the stopping potential (V(0)) and ((1)/(lambda)) is...

    Text Solution

    |

  8. When a monochromatic point source of light is at a distance of 0.2 m f...

    Text Solution

    |

  9. The collecter of the photocell (in photoelectric experiment ) is made ...

    Text Solution

    |

  10. The collecter of the photocell (in photoelectric experiment ) is made ...

    Text Solution

    |

  11. The collecter of the photocell (in photoelectric experiment ) is made ...

    Text Solution

    |

  12. In a photoelectric effect set up, a point source of light of power 3.2...

    Text Solution

    |

  13. In a photoelectric effect set up, a point source of light of power 3.2...

    Text Solution

    |

  14. The radius of and alpha-particle moving in a circle in a constant magn...

    Text Solution

    |

  15. The de Broglie wavelength of an electron moving with a velocity of 1.5...

    Text Solution

    |

  16. 'S' is isotropic point source producing monochromatic radiation with p...

    Text Solution

    |

  17. A monochromatic source of light operation at 200 W emits 4xx10^(20) ph...

    Text Solution

    |

  18. An electron of mass m with an initial velocity vec(v) = v(0) hat(i) ...

    Text Solution

    |

  19. An electron (mass m) with an initial velocity vecv=v(0)hati is in an e...

    Text Solution

    |

  20. Light of wavelength 180 nm ejects photoelectrons from a plate of met...

    Text Solution

    |