Home
Class 12
PHYSICS
The wavelength of an electron of energy ...

The wavelength of an electron of energy 100 eV will be

A

`1.2A^(@)`

B

`10A^(@)`

C

`100A^(@)`

D

`1A^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH SERIES|Exercise PRACTICE EXERCISEX|44 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH SERIES|Exercise EXERCISE-I ASSERTION AND REASON|4 Videos
  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise EXERCISE - III|73 Videos
  • ELECTRIC CHARGES AND FIELDS

    AAKASH SERIES|Exercise Practice Exercise|57 Videos

Similar Questions

Explore conceptually related problems

The de-Broglie wavelength of an electron of kinetic energy 9 eV is (take, h=4xx10^(-15)eV-s,c=3xx10^(10)cm//s and the mass m_(e) of electron as m_(e)c^(2)=0.5 MeV

The ratio of wavelength of a photon and that of an electron of same energy E will be

What is the (a) momentum, (b) speed, and (c) de Broglie wavelength of an electron with kinetic energy of 120 eV.

The De- Broglie wavelength of an electron having 80eV energy is nearly (1ev=1.6xx106(-19)J) Mass of the electron =9xx10^(-31)kg Planck 's constant =6.6xx10^(-34)J-s

The wavelength (in Å ) of a photon having energy 3 eV is approximately. [1eV =1.6 xx 10 ^(-12) erg] [h =6.626 xx 10 ^(-27) erg s ]

The energy of an electron in the first energy level of H atom is -13.6 eV. The possible energy value (s) of the excited state (s) for the electron in He^(+) is (are)

Calculate the wavelength of an electron that has been accelerated in a particle accelerator through a potential difference of 100 million volts.

AAKASH SERIES-DUAL NATURE OF RADIATION AND MATTER-EXERCISE=II
  1. Light of frequency 1.5 times the threshold frequency is incident on a ...

    Text Solution

    |

  2. The maximum wavelength of a beam of light can be used to produce photo...

    Text Solution

    |

  3. The work function of a material is 5.3 eV and the stopping potential f...

    Text Solution

    |

  4. The energy flux of sunlight reaching the surface of the earth is 1.388...

    Text Solution

    |

  5. The threshold frequency for a certain metal is v(0). When a certain ra...

    Text Solution

    |

  6. The work function of a certain metal is 3.31xx10^-(-19) jthen, the max...

    Text Solution

    |

  7. A photon of energy .E. ejects a photoelectron from a metal surface who...

    Text Solution

    |

  8. The surface of a metal is illuminated with the ight of 400nm. The kine...

    Text Solution

    |

  9. The ratio of velocities of a proton and an alpha particle is 4 : 1. Th...

    Text Solution

    |

  10. Which of the following figures represents the variation of particle mo...

    Text Solution

    |

  11. The wavelength of an electron of energy 100 eV will be

    Text Solution

    |

  12. If the kinetic energy of a particle is increased four times, then the ...

    Text Solution

    |

  13. A particle is projected horizontally with a velocity 10m/s. What will ...

    Text Solution

    |

  14. A positron and a proton are accelerated by the same accelerating poten...

    Text Solution

    |

  15. The cut-off wavelength when a potential difference of 25 KV is applied...

    Text Solution

    |

  16. The wavelength of x-rays is of the order of

    Text Solution

    |

  17. The energy of an x-ray photon is 4 kev. Its frequency is nearly

    Text Solution

    |

  18. The momentum of photon of energy 1 MeV will approximately be

    Text Solution

    |

  19. If lamda(K(alpha)),lamda(K(beta)) and lamda(L(alpha)) are the waveleng...

    Text Solution

    |

  20. Atomic numbers of two element are 31 and 41. Find the ratio of the wav...

    Text Solution

    |