Home
Class 12
PHYSICS
Find the ratio of de Broglie wavelength ...

Find the ratio of de Broglie wavelength of molecules of hydrogen and helium which are at temperatures `27^circ` and `127^circC`, respectively.

Text Solution

Verified by Experts

Since,`lambda=h/(mupsilon)=h/sqrt(3mkT),(lambdaH)/(lambdaHe)=sqrt((m_(He)T_(He))/(m_(H)T_(H)))=sqrt(8/3)`
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE

    NARAYNA|Exercise C.U.Q|108 Videos

  • DUAL NATURE

    NARAYNA|Exercise LEVEL-I (C.W)|16 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

Calculate the ratio of de-Broglie wavelength of molecules of hydrogen and oxygen kept in two separate jars at 27^(@)C and 127^(@)C respectively.

Ratio of the de Broglie wavelenght of molecules of helium and hydrogen at temperatur 27^(@) C and 327^(@) C respectively is

Find the ratio of de Broglie wavelength of proton and alpha -perticle of same energy

The de-Broglie wavelength of electron in gound state of an hydrogen atom is

The de-Broglie wavelength of neutron in thermal equilibrium at temperature T is

The ratio of de Broglie wavelength of a proton and a neutron moving with same velocity is nearly

The ratio of the de Broglie wavelength of a proton and alpha particles will be 1:2 if their

The ratio of d-Brogile wavelength off mlecules of hydrogen and helium gas moving at arms speed in two gas jars kept sparately at temeperature 37^(@) C and 127^(@) C respectively is :

What will be the ratio of de - Broglie wavelengths of proton and alpha - particle of same energy ?

NARAYNA-DUAL NATURE-LEVEL-II (H.W)
  1. Find the ratio of de Broglie wavelength of molecules of hydrogen and h...

    Text Solution

    |

  2. When a metal surface is illuminated by a monochromatic light of wave-l...

    Text Solution

    |

  3. Ultraviolet light of wavelength 800 A and 700 A when allowed to fall ...

    Text Solution

    |

  4. In a photoelectric effect experiment, photons of energy 5eV are incide...

    Text Solution

    |

  5. The number of photons emitted per second by a 62W source of monochroma...

    Text Solution

    |

  6. Photons of frequencies 2.2xx10^(15) Hz and 4.6xx10^(15) Hz are inciden...

    Text Solution

    |

  7. If stopping potentials corresponding to wavelengths 4000A and 4500A ar...

    Text Solution

    |

  8. In a photoelectric experiment anode potential is ploted against plate ...

    Text Solution

    |

  9. An electron moves with a speed of sqrt3/2c. Then its mass becomes…. Ti...

    Text Solution

    |

  10. Photons of energy 2.0eV fall on a metal plate and release photoelectro...

    Text Solution

    |

  11. A proton when accelerated through a p.d of V volt has wavelength lambd...

    Text Solution

    |

  12. The momentum of photon of electromagnetic radiation is 3.3xx10^(-29)kg...

    Text Solution

    |

  13. If the energy of a particle is reduced to one fourth, then the percent...

    Text Solution

    |

  14. The de Broglie wavelength associated with an electron of velocity 0.3c...

    Text Solution

    |

  15. The two lines A and B in fig. show the photo electron of de Broglie wa...

    Text Solution

    |

  16. The uncertainity in the position of a particle is equal to the de-Brog...

    Text Solution

    |

  17. If the uncertainty in the position of proton is 6xx10^-8m, then the mi...

    Text Solution

    |

  18. From Davisson-Germer experiment an alpha particle and a proton are acc...

    Text Solution

    |