Home
Class 12
PHYSICS
Carbon, silicon and germanium atoms have...

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?

A

`(E_g)_C gt (E_g)_(Si)`

B

`(E_g)_C lt (E_g)_(Si)`

C

`(E_g)_C=(E_g)_(Si)`

D

`(E_g)_C lt (E_g)_(Ge)`

Text Solution

Verified by Experts

The correct Answer is:
A
Due to strong electronegativity of carbon.
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS : METERIALS, DEVICES AND SIMPLE CIRCUITS

    DISHA PUBLICATION|Exercise EXERCISE -2: CONCEPT APPLICATOR|25 Videos

  • SEMICONDUCTOR ELECTRONICS : METERIALS, DEVICES AND SIMPLE CIRCUITS

    DISHA PUBLICATION|Exercise EXERCISE -2: CONCEPT APPLICATOR|25 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    DISHA PUBLICATION|Exercise Exercise -2 : Concept Applicator|26 Videos

  • SYSTEM OF PARTICLES & ROTATIONAL MOTION

    DISHA PUBLICATION|Exercise EXERCISE-2 : CONCEPT APPLICATOR|28 Videos

Similar Questions

Explore conceptually related problems

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 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 ?

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

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 have four velence electrons each . At room temperature which one of the following statements is most appropriate ?

If f(x)=e^(x) and g(x)= log_(e)x , hen which of the following is true?

DISHA PUBLICATION-SEMICONDUCTOR ELECTRONICS : METERIALS, DEVICES AND SIMPLE CIRCUITS-EXERCISE -1: CONCEPT BUILDER (TOPICWISE)
  1. In a half wave rectifier, the r.m.s value of the A.C. component of the...

    Text Solution

    |

  2. The average value of output direct current in a full wave rectifier is

    Text Solution

    |

  3. Carbon, silicon and germanium atoms have four valence electrons each. ...

    Text Solution

    |

  4. If an ideal junction diode is connected as shown, then the value of th...

    Text Solution

    |

  5. Which is the correct diagram of a half-wave rectifier

    Text Solution

    |

  6. In a p-type semiconductor the acceptor level is situated 60 m eV above...

    Text Solution

    |

  7. For bidden gap for insulators is

    Text Solution

    |

  8. Copper, a monovalent, has molar mass 63.54 g/mol and density 8.96 g//c...

    Text Solution

    |

  9. An LED is constructed from a p-n junction based on a certain Ga-As-P s...

    Text Solution

    |

  10. In a photodiode,the conductivity increases when the material is expose...

    Text Solution

    |

  11. The energy gap of silicon is 1.14 eV. Find the maximum wavelenth at wh...

    Text Solution

    |

  12. On doping germanium with donor atoms of density 10^(17) cm^(-3), find ...

    Text Solution

    |

  13. The ratio of electron and hole currents in a semiconductor is 7/4 and ...

    Text Solution

    |

  14. What is the conductivity of a semiconductor (in Omega^(-1) m^(-1)) if ...

    Text Solution

    |

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

    Text Solution

    |

  16. In germanium the energy gap is about 0.75 eV. The wavelength of light ...

    Text Solution

    |

  17. A potential barrier of 0.3 V exists across a p-n junction. An electron...

    Text Solution

    |

  18. To use a transistor as an amplifier

    Text Solution

    |

  19. Current gain of a transistor in common base mode is 0.95. Its value in...

    Text Solution

    |

  20. A transistor has three impurity regions , emitter , base and collector...

    Text Solution

    |