Home
Class 12
PHYSICS
Mention any two types of electron emissi...

Mention any two types of electron emission.

Text Solution

Verified by Experts

Thermionic emission.
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|20 Videos

  • MAGNETISM AND MATTER

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|12 Videos

Similar Questions

Explore conceptually related problems

Mention any one type of electron emission.

Mention the three types of electron emission.

Mention two types of gametogenesis.

what is ecological succession? Mention two types of ecological succession.

What is biodiversity ? Mention any two type of diodiversity .

Mention any two effects of current.

Mention two types of motion of electrons which originates the magnetic moment of a substance.

Mention the two types of signals.

SUBHASH PUBLICATION-II PUC ANNUAL EXAMINATION QUESTION PAPER MARCH 2019-QUESTION
  1. For which position of the object magnification of convex lens is -1 (m...

    Text Solution

    |

  2. For which angle of incidence reflected ray is completely polarised ?

    Text Solution

    |

  3. Mention any two types of electron emission.

    Text Solution

    |

  4. Write the expression for energy of an electron orbit of hydrogen atom.

    Text Solution

    |

  5. Write the relation between Half-Life and Mean-Life of radio active ele...

    Text Solution

    |

  6. Write any two basic properties of charges

    Text Solution

    |

  7. Write the expression for drift velocity in terms of current and explai...

    Text Solution

    |

  8. Define: (a) Magnetic declination (b)Magnetic dip. Mention the S.I. u...

    Text Solution

    |

  9. Write the expression for speed of light in terms of mu(0) and epsilon(...

    Text Solution

    |

  10. Write the ray diagram for formation of image in the simple microscope.

    Text Solution

    |

  11. What is diffraction of light?

    Text Solution

    |

  12. Write the expression for de-Broglie wavelength of electrons interms of...

    Text Solution

    |

  13. Distinguish between p type and n type semiconductors

    Text Solution

    |

  14. Derive an expression for potential energy of electric - di-pole p...

    Text Solution

    |

  15. Write the expression for force per unit length between two striagh...

    Text Solution

    |

  16. Distinguish between 'dia' and 'ferro' magnetic materials.

    Text Solution

    |

  17. Mention energy losses in a transformer .

    Text Solution

    |

  18. Write any three experimental observations of photoelectric effect

    Text Solution

    |

  19. State the three postulates of Bohr's theory of hydrogen atom.

    Text Solution

    |

  20. Explain the .Conduction band. .Valence band. and .Energy gap. in semi...

    Text Solution

    |