Home
Class 12
PHYSICS
The electron beam in a colour TV is acce...

The electron beam in a colour TV is accelerated through 32 kV and then strikes the screen. What is the wavelength of the most energetic X-ray photon?

Text Solution

Verified by Experts

Given `V=32KV=32xx10^3V `
When accelerated through `32KV `
` E=32xx10^3eV `
` lambda=(hc)/E=1242/(32xx10^3) `
` =38.8xx10^-3nm `
` =38.8p m`
Promotional Banner

Topper's Solved these Questions

  • X-Rays

    HC VERMA|Exercise Objective 2|8 Videos

  • THERMAL AND CHEMICAL EFFECT OF ELECTRIC CURRENT

    HC VERMA|Exercise Exercises|24 Videos

Similar Questions

Explore conceptually related problems

In an old-fashioned television set, electrons are accelerated through a potential difference of 25.0 kV. What is the de Broglie wavelength of such electrons? (Relativity is not needed.)

An electron experiment was performed with a beam of electron accelerated by a potentail difference of 10.0 k eV .What is the wavelength of the electron beam

An electron beam in an X-ray tube is acclerated through a potential difference of 50000 volts. These are then made to fall on a tungsten target The shortest wavelength of the X-ray emitted by the tube is

The kinetic energy (K.E.) of a beam of electrons, accelerated through a potential V, equalws the energy of a photon of wavelength of 5460 nm. Find the de-Broglie wavelength associated with this beam of electrons.

In an X-ray tube if the electrons are accelerated through 140KV then anode current obtained is 30mA. If the whole energy of electrons is converted into heat then the rate of production of heat at anode will be

HC VERMA-X-Rays-Exercises
  1. The distance between the cathode (filament) and the target in an X-ray...

    Text Solution

    |

  2. The short-wavelength limit shifts by 26 pm when the operating voltage ...

    Text Solution

    |

  3. The electron beam in a colour TV is accelerated through 32 kV and then...

    Text Solution

    |

  4. When 40 kV is applied across an X-ray tube, X-ray is obtained with a m...

    Text Solution

    |

  5. An X-ray tube operates at 40 kV. Suppose the electron converts 70% of ...

    Text Solution

    |

  6. The wavelength of Kalpha X-ray of tungsten is 21*3 pm. It takes 11*3 k...

    Text Solution

    |

  7. The Kbeta X-ray of argon has a wavelength of 0.36 nm. The minimum ener...

    Text Solution

    |

  8. The kalpha X-rays of aluminium (Z = 13 ) and zinc ( Z = 30) have wavel...

    Text Solution

    |

  9. A certain element emits Kalpha X-ray of energy 3*69 keV. Use the data ...

    Text Solution

    |

  10. The kbeta X-rays from certain elements are given below. Draw a Moseley...

    Text Solution

    |

  11. Use Moseley's law with b = 1 to find the frequency of the Kalpha X-ray...

    Text Solution

    |

  12. The Kalpha and Kbeta X-rays of molybdenum have wavelengths 0*71 A and ...

    Text Solution

    |

  13. The wavelength of Kalpha and Lalpha X-rays of a meterial are 21*3 pm a...

    Text Solution

    |

  14. The energy of a silver atom with a vacancy in K shell is 25*31 keV, in...

    Text Solution

    |

  15. Find the maximum potential difference which may be applied across an X...

    Text Solution

    |

  16. The electric current in an X-ray tube (from the target to the filament...

    Text Solution

    |

  17. Heat at the rate of 200 W is produced in an X-ray tube operating at 20...

    Text Solution

    |

  18. Continuous X-rays are made to strike a tissue paper soaked with pollut...

    Text Solution

    |

  19. A free atom of iron emits Kalpha X-rays of energy 6*4 keV. Calculate t...

    Text Solution

    |

  20. The stopping potential in a photoelectric experiment is linearly relat...

    Text Solution

    |