Home
Class 12
PHYSICS
In germanium crystal, the forbidden ener...

In germanium crystal, the forbidden energy gap in joule is

A

`1.6xx10^(-19)`

B

zero

C

`1.12xx10^(-19)`

D

`1.76xx10^(-19)`

Text Solution

Verified by Experts

The correct Answer is:
c
For a germanium crystal,
`E_g=0.7eV=0.7xx1.6xx10^(-19)J=1.12xx10^(-19)J`
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS

    FULL MARKS|Exercise Additional Question (Short Answer Questions)|22 Videos

  • SEMICONDUCTOR ELECTRONICS

    FULL MARKS|Exercise Additional Question (Long Answer Questions.)|3 Videos

  • SEMICONDUCTOR ELECTRONICS

    FULL MARKS|Exercise Textual Evaluation Solved (Numerical Problems)|5 Videos

  • SAMPLE PAPER-8

    FULL MARKS|Exercise PART-IV|10 Videos

Similar Questions

Explore conceptually related problems

The forbidden energy gap is largest in

What is forbidden energy gap?

What is meant by forbidden energy gap ?

In an good conductor the forbidden energy gap between the between the conduction band and valence band is of the order of

Determine the Wavelength of light emitted from LED which is made up of GaAsP semiconductor whose forbidden energy gap is 1.875 eV.Mention the colour of the light emitted.

Given the Schematic representation of valence band, conduction band , and forbidden energy gap. And draw energy and structure of (a) Insulators (b) Semiconductors (c) Metals?

1 joule = eV

FULL MARKS-SEMICONDUCTOR ELECTRONICS-Additional question(M. C.Q)
  1. Barrier potential of a p-njunction diode does not depend on

    Text Solution

    |

  2. The peak voltage in the output of a half wave diode rectifier fed with...

    Text Solution

    |

  3. A p-n diode can be used as

    Text Solution

    |

  4. Zener diode is used for

    Text Solution

    |

  5. when NPN transistor is used as an amplifier then ……….

    Text Solution

    |

  6. The correct relationship between the two current gains alpha and beta ...

    Text Solution

    |

  7. The correct relation for alpha,beta for a transistor is

    Text Solution

    |

  8. In common - emitter amplifier the ratio (IC)/(IE) 0.98. The current ga...

    Text Solution

    |

  9. Radio waves of constant amplitude can be generated with

    Text Solution

    |

  10. An oscillator is an amplifier with

    Text Solution

    |

  11. The output of OR gate is 1

    Text Solution

    |

  12. The device which easily closes or opens an electric circuit is called ...

    Text Solution

    |

  13. At absolute zero temperature, a semiconductor acts as a/an

    Text Solution

    |

  14. At which temperature, a pure semiconductor behave slightly as a conduc...

    Text Solution

    |

  15. In germanium crystal, the forbidden energy gap in joule is

    Text Solution

    |

  16. In a p-type semiconductor, germanium is doped with

    Text Solution

    |

  17. The major carrier of current in a p-type semiconductor will be

    Text Solution

    |

  18. Rectification is the process of conversion of

    Text Solution

    |

  19. Which type of gate is represented by the given figure?

    Text Solution

    |

  20. Which of the following gates can be served as a building block for any...

    Text Solution

    |