Home
Class 10
PHYSICS
Why is a cathode ray tube evacuated to a...

Why is a cathode ray tube evacuated to a low pressure ?

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Cathode rays are

The charge of an electron is 1.6 × 10^(-19) C . How many electrons strike the screen of a cathode ray tube each second when the beam current is 16 mA

In a cathode ray tube state : the purpose of the fluorescent screen.

In a cathode ray tube state : How is it possible to increase the rate of emission of electrons.

Cathode rays constitute a stream of

Which among the following reactions will be favoured at low pressure?

In a cathode ray tube state : the purpose of covering cathode by thorium and carbon.

What are cathode rays? How are these rays formed?

Cathode rays have same charge to mass ratio as

Why cathode ray tube experiment is not conducted at atmospheric pressure?

ICSE-SAMPLE PAPER 2015-SECTION-II
  1. Why is a cathode ray tube evacuated to a low pressure ?

    Text Solution

    |

  2. Draw a simplified diagram of a lemon crusher, indicating direction of ...

    Text Solution

    |

  3. Name the physical quantity measured in terms of horse power.

    Text Solution

    |

  4. A nut is opened by a wrench of length 20 cm. If the least force requir...

    Text Solution

    |

  5. Explain briefly why the work done by a fielder when he takes a catch i...

    Text Solution

    |

  6. A block and tackle system has V.R. = 5. Draw a neat labelled diagram...

    Text Solution

    |

  7. A block and tackle system has V.R. = 5. Rohan exerts a pull of 150 k...

    Text Solution

    |

  8. Where should an object be placed so that a real and inverted image of ...

    Text Solution

    |

  9. Draw a ray diagram to show the formation of the image as specified in ...

    Text Solution

    |

  10. Why does the Sun appear reddish early in the morning?

    Text Solution

    |

  11. Name the subjective property of light related to its wavelength.

    Text Solution

    |

  12. Jatin puts a pencil into a glass container having water and is surpris...

    Text Solution

    |

  13. Jatin puts a pencil into a glass container having water and is surpris...

    Text Solution

    |

  14. Jatin puts a pencil into a glass container having water and is surpris...

    Text Solution

    |

  15. State the safe limit of sound level in terms of decibel for human hear...

    Text Solution

    |

  16. Name the characteristic of sound in relation to its waveform.

    Text Solution

    |

  17. A person standing between two vertical cliffs and 480 m from the neare...

    Text Solution

    |

  18. A person standing between two vertical cliffs and 480 m from the neare...

    Text Solution

    |

  19. In the diagram below, A, B, C, D are four pendulums suspended from the...

    Text Solution

    |

  20. In the diagram below, A, B, C, D are four pendulums suspended from the...

    Text Solution

    |

  21. In the diagram below, A, B, C, D are four pendulums suspended from the...

    Text Solution

    |