Home
Class 12
PHYSICS
The wavelength of de-Broglie wave is 3 m...

The wavelength of de-Broglie wave is 3 `mu m`, then its momentum `(h = 6.63 xx 10^(-34) Js)` is

A

`3.315 xx 10^(-28) "kg ms"^(-1)`

B

`2.21 xx 10^(-28) "kg ms"^(-1)`

C

`4.97 xx 10^(-28) "kg ms"^(-1)`

D

`9.9 xx 10^(-28) "kg ms"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`p = (h)/(lambda) = (6.03 xx 10^(-34) Js)/(2 xx 10^(-6) m) prop 3.315 xx 10^(-28) "kg ms"^(-1)`
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise ADDITIONAL QUESTIONS -(SHORT ANSWER QUESTIONS )|7 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise ADDITIONAL QUESTIONS -( LONG ANSWER QUESTIONS )|7 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise TEXTUAL EVALUATION SOLVED -( NUMERICAL PROBLEMS)|15 Videos

  • CURRENT ELECTRICITY

    FULL MARKS|Exercise Additional Questions Solved (Numerical Problems)|6 Videos

  • ELECTROSTATICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED ( VII. NUMERICAL PROBLEMS )|5 Videos

Similar Questions

Explore conceptually related problems

The wavelength of de-Broglie waves doesn't depend on "_____________" .

A beam of helium atoms moves with a velocity of 2.0 xx 10^3 ms^(-1) . Find the wavelength of the particles constituting the beam. (h = 6.626 xx 10^(-34)Js) .

If a light of wavelength 330nm is incident on a metal with word function 3.55eV, the electrons are emitted. Then the wavelength of the emitted electron is ( Taken h = 6.6 xx 10^(-34) Js)

A moving electron has 4.9 xx 10^(-25) joules of kinetic energy. Find out its de - Broglie wavelength (Given h = 6.626 xx 10^(-34) Js, m_e = 9.1 xx 10^(-31) kg).

Calculate the De-Broglie wavelength of a particle whose momentum is 66.26 xx 10^(-28) kg ms^(-1) .

Calculate the momentum of electrons if their wavelengths is 2Å . Given : h = 6.626 xx 10^(-34) Js and m = 9.1 xx 10^(-31) kg

If a light of wavelength 330 nm is incident on a metal with work function 3.55 eV, the electrons are emitted. Then the wavelength of the emitted electron is (Take h = 6.6 xx 10^(-34) Js)………………………

FULL MARKS-DUAL NATURE OF RADIATION AND MATTER-ADDITIONAL QUESTIONS -(MULTIPLE CHOICE QUESTIONS )
  1. Ultraviolet radiations of 6.2 eV falls on an aluminium surface. Kineti...

    Text Solution

    |

  2. The de-Broglie wavelength of a tennis ball of mass 60g moving with a v...

    Text Solution

    |

  3. The wavelength of de-Broglie wave is 3 mu m, then its momentum (h = 6....

    Text Solution

    |

  4. What is de-Broglie wavelength of electron having energy 10 KeV ?

    Text Solution

    |

  5. Which one of the following property does not support wave theory of li...

    Text Solution

    |

  6. de-Broglie wavelength lambda associated with neutrons is related with ...

    Text Solution

    |

  7. As the intensity of incident light increases

    Text Solution

    |

  8. The de Broglie wave corresponding to a particle of mass m and velocity...

    Text Solution

    |

  9. If particles are moving with same velocity, then which has maximum de-...

    Text Solution

    |

  10. The dual nature of light is exhibited by

    Text Solution

    |

  11. If the momentum of a particle is doubled, then its de-Broglie waveleng...

    Text Solution

    |

  12. Moving with the same velocity, which of the following has the longest ...

    Text Solution

    |

  13. What is the de-Broglie wavelength of the alpha-particle accelerated th...

    Text Solution

    |

  14. A proton and an alpha-particle are accelerated through the same potent...

    Text Solution

    |

  15. Proton and alpha-particle have the same de-Broglie wavelength. What is...

    Text Solution

    |

  16. The shortest wavelength of X-ray emitted from an X-ray tube depends up...

    Text Solution

    |

  17. An X-ray tube operates on 30 kV. The minimum wavelength emitted is h =...

    Text Solution

    |

  18. The potential difference between the cathode and the target in a cooli...

    Text Solution

    |

  19. The work function for AI, K and Pt is 4.28 eV, 2.30 eV and 5.65 eV res...

    Text Solution

    |

  20. Among the following four spectral regions, the photons has the highest...

    Text Solution

    |