Home
Class 12
PHYSICS
If the momentum of an electron is change...

If the momentum of an electron is changed by `p`, then the de - Broglie wavelength associated with it changes by `0.5 %`. The initial momentum of electron will be

A

`(p)/(200)`

B

100p

C

200p

D

400p

Text Solution

Verified by Experts

The correct Answer is:
3
`lambda_(1) = (h)/(p^(1)), lambda_(2) = (h)/(P + P^(1))`
`(lambda_(1) - lambda_(2))/(lambda_(1))xx100=0.5`
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    NARAYNA|Exercise EXERCISE - 4|25 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NARAYNA|Exercise ASSERTION AND REASON|15 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NARAYNA|Exercise EXERCISE - 2 (H.W)|20 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 6|43 Videos

  • DUAL NATURE

    NARAYNA|Exercise LEVEL-II (H.W)|17 Videos

Similar Questions

Explore conceptually related problems

If the momentum of an electron is changed by Delta p , then the de - Broglie wavelength associated with it changes by 0.50 % . The initial momentum of the electron will be

If the momentum of electron is changed by P_(m) then the de-Broglie wavelength associated with it changes by 0.50%. The initial momentum of electron will be:

The angular momentum of p electron is

The kinetic energy of an electron gets tripled, then the de-Broglie wavelength associated with it changes by a factor

If the initial momentum of electron is P_(i) and the De broglie wavelength associated with it changes by 1% .Find the change in momentum (Delta P) of electron :-

Plot a graph of the de - Broglie wavelength associated with a proton versus its momentum .

Find the initial momentum of electron if the momentum of electron is changed by p_(m) and the De Brogile wavelength associated with it changed by 0.50%

Plot a graph of the de-Broglie wavelength associated with a photon versus its momentum.

What is the de-Broglie wavelength associated with the hydrogen electron in its third orbit

NARAYNA-DUAL NATURE OF RADIATION AND MATTER-EXERCISE - 3
  1. In photoelectric emission process from a metal of work function 1.8 eV...

    Text Solution

    |

  2. The threshold frequency for a certain metal is 3.3xx10^(14) Hz. If lig...

    Text Solution

    |

  3. Electrons used in an electron microscope are accelerated by a voltage ...

    Text Solution

    |

  4. Monochromatic radiation emitted when electron on hydrogen atom jumps f...

    Text Solution

    |

  5. Lights of two different frequencies whose photons have energies 1 and ...

    Text Solution

    |

  6. A alpha -parhticle moves in a circular path of radius 0.83 cm in th...

    Text Solution

    |

  7. If the momentum of an electron is changed by p, then the de - Broglie ...

    Text Solution

    |

  8. For photoelectric emission from certain metal the cut - off frequency ...

    Text Solution

    |

  9. If velocity of a particle is 3 times of that of electron and ratio of ...

    Text Solution

    |

  10. The wavelength lambda(e ) of an electron and lambda(p) of a photon of...

    Text Solution

    |

  11. If the kinetic energy of the particle is increased to 16 times its pre...

    Text Solution

    |

  12. Light with an enargy flux of 25xx10^(4) Wm^(-2) falls on a perfectly r...

    Text Solution

    |

  13. When the energy of the incident radiation is increased by 20 % , kinet...

    Text Solution

    |

  14. When a certain metallic surface is illuminated with mono chromatic lig...

    Text Solution

    |

  15. A photoelectric surface is illuminated successively by monochromatic l...

    Text Solution

    |

  16. Light of wavelength 500 nm is incident on a metal with work function 2...

    Text Solution

    |

  17. Electrons with de-Broglie wavelength lambda fall on the target in an X...

    Text Solution

    |

  18. Photons with energy 5 eV are incident on a cathode C in a photoelectri...

    Text Solution

    |

  19. An electron of mass m and a photon have same energy E. The ratio of de...

    Text Solution

    |

  20. When a metallic surface is illuminated with radiation of wavelength la...

    Text Solution

    |