Home
Class 12
PHYSICS
If an electron has an energy such that i...

If an electron has an energy such that its de Broglie wavelength is `5500 Å`, then the energy value of that electron is `(h= 6.6 xx 10^(-34))` Js, `m_( c) = 9.1 xx 10^(-31)` kg

A

`8xx10^(-20)J`

B

`8xx10^(-10)J`

C

8J

D

`8xx10^(-25)J`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 106

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET SET 108

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

The de-Broglie wavelength of an electron is 600 nm . The velocity of the electron is: (h = 6.6 xx 10^(-34) J "sec", m = 9.0 xx 10^(-31) kg)

The de-Broglie wavelength of an electron is 66 nm. The velocity of the electron is [h= 6.6 xx 10^(-34) kg m^(2)s^(-1), m=9.0 xx 10^(-31) kg]

Photon having energy equivalent to the binding energy of 4th state of He^(+) ion is used to eject an electron from the metal with KE/2eV . If electron is further accelerated through a potential difference of 4V then the minimum value of de Broglie wavelength associated with the electron is : (h = 6.6 xx 10^(-34) J-s , m_(e) = 9.1 xx 10^(-31) kg . 1 eV = 1.6 xx 10^(-19) J )

If de Broglie wavelength of an electron is 0.5467 Å, find the kinetic energy of electron in eV. Given h=6.6xx10^(-34) Js , e= 1.6xx10^(-19) C, m_e=9.11xx10^(-31) kg.

The kinetic energy of an electron is 5 eV . Calculate the de - Broglie wavelength associated with it ( h = 6.6 xx 10^(-34) Js , m_(e) = 9.1 xx 10^(-31) kg)

The de Broglie wavelength of an electron with kinetic energy 120 e V is ("Given h"=6.63xx10^(-34)Js,m_(e)=9xx10^(-31)kg,1e V=1.6xx10^(-19)J)

An electron is accelerated under a potential difference of 64 V, the de-Brogile wavelength associated with electron is [e = -1.6 xx 10^(-19) C, m_(e) = 9.1 xx 10^(-31)kg, h = 6.623 xx 10^(-34) Js]

NTA MOCK TESTS-NTA NEET SET 107-PHYSICS
  1. An alpha nucleus of energy (1)/(2)m nu^(2) bombards a heavy nucleus o...

    Text Solution

    |

  2. If an electron has an energy such that its de Broglie wavelength is 55...

    Text Solution

    |

  3. Three blocks A, B and C are lying on a smooth horizontal surface, as s...

    Text Solution

    |

  4. A ball of mass m approaches a heavy wall of mass M with speed 4 m/s al...

    Text Solution

    |

  5. A particle of mass 100 g tied to a string is rotated along the circle ...

    Text Solution

    |

  6. At a certain place, the angle of dip is 60^(@) and the horizontal com...

    Text Solution

    |

  7. A galvanometer of resistance 25Omega measures 10^(-3)A . shunt requir...

    Text Solution

    |

  8. The emf of a cell is 6 V and internal resistance is 0.5 kOmega The re...

    Text Solution

    |

  9. If the current in the toroidal solenoid increases uniformly from zero ...

    Text Solution

    |

  10. Two coils P and Q are kept near each other. When no current flows ...

    Text Solution

    |

  11. Two large parallel metal carry charges +Q and –Q respectively . A test...

    Text Solution

    |

  12. The amount of work done in increasing the voltage across the plates of...

    Text Solution

    |

  13. If the radius of the earth were to shrink by 1% its mass remaining the...

    Text Solution

    |

  14. The change in the gravitational potential energy when a body of a mass...

    Text Solution

    |

  15. Consider an expanding sphere of instantaneous radius ? whose total mas...

    Text Solution

    |

  16. An ideal gas at 27^(@)C is compressed adiabatically to 8//27 of its or...

    Text Solution

    |

  17. Two spheres of the same material have radii 1m and 4m and temperatures...

    Text Solution

    |

  18. The magnetic dipole moment of current loop is independent of

    Text Solution

    |

  19. A long solenoid carrying a current produces a magnetic field B alon...

    Text Solution

    |

  20. The position x of a particle varies with time t as x=at^(2)-bt^(3). Th...

    Text Solution

    |