Home
Class 12
PHYSICS
A free particle with initial kinetic ene...

A free particle with initial kinetic energy E, de-Broglie wavelength `lambda`, enters a region where in it has a potential V, what is the new de-Broglie wavelength?

A

`lamda(1 + E//V)`

B

`lamda(1 - V//E)`

C

`lamda(1 + V//E)^(0.5)`

D

`lamda// (1 - V//E)^(0.5)`

Text Solution

Verified by Experts

The correct Answer is:
D

`lamda// (1 - V//E)^(0.5)`
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    DISHA PUBLICATION|Exercise EXERCISE -2 : CONCEPT ALLPLICATOR|30 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    DISHA PUBLICATION|Exercise EXERCISE -2 : CONCEPT ALLPLICATOR|30 Videos
  • CURRENT ELECTRICITY

    DISHA PUBLICATION|Exercise EXERCISE-2 Concept Applicator|23 Videos
  • ELECTRIC CHARGES AND FIELDS

    DISHA PUBLICATION|Exercise Exercise - 2 : Concept applicator|24 Videos

Similar Questions

Explore conceptually related problems

de-Broglie wavelength lambda is

The de-Broglie wavelength lamda

Questions on de-Broglie Wavelength

The de Broglie wavelength lambda of a particle

De Broglie wavelength lambda is proportional to

An electron is having a kinetic energy of 50 eV. Its de-Broglie wavelength is

The de Broglie wavelength lamda of an electron accelerated through a potential V in volts is

For particles having same K.E., the de-Broglie wavelength is

The de Broglie wavelength is given by

DISHA PUBLICATION-DUAL NATURE OF RADIATION AND MATTER-EXERCISE -1 : CONCEPT BUILDER
  1. A proton accelerated through a potential difference of 100V, has de-Br...

    Text Solution

    |

  2. The de-Broglie wavelength of neutron in thermal equilibrium at tempera...

    Text Solution

    |

  3. A free particle with initial kinetic energy E, de-Broglie wavelength l...

    Text Solution

    |

  4. A proton has kinetic energy E = 100 keV which is equal to that of a ph...

    Text Solution

    |

  5. The de-Brogile wavelength of a neutron at 927^(@)C is lamda. What will...

    Text Solution

    |

  6. A proton and an alpha-particle are accelerated through same potential ...

    Text Solution

    |

  7. If E(1) , E(2) "and" E(3) represent respectively the kinetic energies ...

    Text Solution

    |

  8. An electron of mass m and charge e initially at rest gets accelerated ...

    Text Solution

    |

  9. The photoelectron emitted from a metal surface are such that their vel...

    Text Solution

    |

  10. Light of a particular frequency v is incident on a metal surface. When...

    Text Solution

    |

  11. Einstein's photoelectric equation is Ek = hv - phi . In this equation ...

    Text Solution

    |

  12. Light of wavelength 3500Å is incident on two metals A and B whose work...

    Text Solution

    |

  13. The photoelectric work function for a metal surface is 4.125 eV. The c...

    Text Solution

    |

  14. When ultraviolet lightofenergy6.2 eV incidents on a aluminimum surface...

    Text Solution

    |

  15. The threshold frequency for a metallic surface corresponds to an energ...

    Text Solution

    |

  16. In a photoelectric experiment the stopping potential for the incident ...

    Text Solution

    |

  17. In photoelectric effect, stopping potential for a light of frequency n...

    Text Solution

    |

  18. Which metal will be suitable for a photo electric cell using light...

    Text Solution

    |

  19. Radiations of two photon’s energy, twice and ten times the work functi...

    Text Solution

    |

  20. A small photocell is placed at a distance of 4 m from a photosensitive...

    Text Solution

    |