Home
Class 11
PHYSICS
Carbon , silicon and germanium have four...

Carbon , silicon and germanium have four valence elcectrons each . These are characterised by valence and conduction bands separated by energy band - gap respectively equal to ` (E_g)_(c) (E_g)_(si) ` and ` (E_g)_(Ge) `. Which of the following statements ture ?

A

`(E_(g))_(Si) lt (E_(g))_(Ge) lt (E_(g))_(C)`

B

`(E_(g))_(C) lt (E_(g))_(Ge) lt (E_(g))_(Si`

C

`(E_(g))_(C) gt (E_(g))_(Si) gt (E_(g))_(C)`

D

`(E_(g))_(C) = (E_(g))_(Si) lt (E_(g))_(Ge)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • RIGID BODY DYNAMICS

    RESONANCE|Exercise Exercise|53 Videos

  • SIMPLE HARMONIC MOTION

    RESONANCE|Exercise Exercise|28 Videos

Similar Questions

Explore conceptually related problems

Carbon silicon and germanium have four valence electrons each these are characterised by valence and conduction bands separated by energy band gap respectively equal to which of the following statement is true (a) (E_(g))_(Si)lt(E_(g))_(Ge)lt(E_(g))_(c ) (b) (E_(g))_(c )lt(E_(g))_(Gelt(E_(g))_(Si) (c ) (E_(g))_(c )gt(E_(g))_(Si)gt(E_(g))_(Ge) (d)(E_(g))_(c )=(E_(g))_(si)=(E_(g))_(Ge)

Carbon, silicon and germanium atoms have four valence electrons each. Their valence and conduction bands are separated by energy band gaps represented by (E_(g))_(C),(E_(g))_(Si) and (E_(g))_(Ge) , respectively. Which one of the following relationship is true in their case?

Carbo , silicon and Germanitum atomshave four valence electrons each . Their velence and conduction bands are separeated by energy nands gaps represented by (E_g)_C , (E_g)_(Si), (E_g)_(Ge) repectively . Which relativon is correct ?

Carbon, silicon and germanium have four valence electrons each. The most appropriate statement for these elements (at room temperature) is

RESONANCE-SEMICONDUCTORS-Exercise
  1. The circuit shown in figure (1) Contains two diodes each with a forwar...

    Text Solution

    |

  2. The part of a transistor which is most heavily doped to produce large ...

    Text Solution

    |

  3. The difference in the variation of resistance with temperature in a me...

    Text Solution

    |

  4. When p-n junction diode is forward biased then

    Text Solution

    |

  5. The electrical conductivity of a semiconductor increases when electrom...

    Text Solution

    |

  6. In a common base ampifier , the phase difference between the input sig...

    Text Solution

    |

  7. In a full wave rectifier circuit operating from 50 Hz mains frequency ...

    Text Solution

    |

  8. If the ratio of the concentration of electron to that of holes in a se...

    Text Solution

    |

  9. In a common base mode of a transition , the collector current is 5.48...

    Text Solution

    |

  10. A working transitor with its three legs marked P, Q and R is tested us...

    Text Solution

    |

  11. The logic circuit shown below has the input waveforms ‘A’ and ‘B’ as s...

    Text Solution

    |

  12. In a....... baised pn junction , the net flow of holes is from the n ...

    Text Solution

    |

  13. In a p-n junction photo cell, the value of the photo electromotive for...

    Text Solution

    |

  14. Carbon , silicon and germanium have four valence elcectrons each . The...

    Text Solution

    |

  15. For a transistor amplifier, the voltage gain

    Text Solution

    |

  16. In a transistor connected in a common emitter mode RC = 4kOmega, R1 = ...

    Text Solution

    |

  17. In the figure shown RB = 500K Omega, RC = 8K Omega, VBB= 10.6 V and V(...

    Text Solution

    |

  18. Which of the following statement is true for a p-n-p transistor when u...

    Text Solution

    |

  19. A resistance R is connected at the n terminal of a p-n junction in ser...

    Text Solution

    |

  20. In a transistor, the value of alpha=0.9. Then the value of beta is:

    Text Solution

    |