Home
Class 11
PHYSICS
Statement-I : Germanium is preferred ove...

Statement-I : Germanium is preferred over silicon for making semiconductor devices
Statement-II : Energy gap for Ge is more than that of `SI`

A

Statetment-I is True, Statement-II is True , Statement-II is a correct explanation for Statement-I

B

Statement-I is True, Statement-II is True , Statement-II is NOT a correct explanation for Statement-I

C

Statement-I is True, Statement-II is False

D

Statement-I is False, Statement-II is True

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-4)|51 Videos
  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-2)|49 Videos
  • PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT

    ALLEN|Exercise EXERCISE-IV|8 Videos
  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-1(Exercise-05)[B]|42 Videos

Similar Questions

Explore conceptually related problems

Assertion: Silicon is preferred over germanium for making semiconductor devices. Reason: The energy gap for germanium is more than the energy gap of silicon.

Consider the following statements A and B and identify the correct answer (1) : Germanium is preferred over silicon in the construction of zener diode. (2) : Germanium has high thermal stability than silicon in the construction of Zener diode.

Statement-I : Lithium is a better reducing agent than Cs. Statement-II : Sublimation energy and ionization energy of lithium is less than that of Cs.

Statement-1 : When the temperature of a semiconductor is increased, then its resistance decreases. Statement-2 : The energy gap between conduction band and valence band is very small for semiconductor.

Statement-I : Propene is more reactive than ethnc with HCl . Because Staement-II : Propene is more stable than ethene.

Statement-I: Alkenes are more reactive than alkynes towards HX. Statement-II: Alkyl carbocation is more stable tha vinyl carbocation.

The given graph represents V-I chareacteristic for a semiconductor device which of the following statement is correct

ALLEN-SEMICONDUCTORS-Part-3(Exercise-3)
  1. Assertion: The television broadcasting becomes weaker with increasing ...

    Text Solution

    |

  2. Assertion: The Microwave propagation is better than the sky wave propa...

    Text Solution

    |

  3. Statement-I : Semiconductors do not obey Ohm's law Statement-II : El...

    Text Solution

    |

  4. Statement-I : Germanium is preferred over silicon for making semicondu...

    Text Solution

    |

  5. Assertion : p-n junction diode can be used even at ultra high frequenc...

    Text Solution

    |

  6. Statement-I : A p-n junction with reverse bias can be used as a photod...

    Text Solution

    |

  7. Assertion: NAND or NOR gates are called digital building blocks. Rea...

    Text Solution

    |

  8. Assertion: Two P-N junction diodes placed back to back, will work as a...

    Text Solution

    |

  9. Statement-I : When base region has larger width, the collector current...

    Text Solution

    |

  10. Statement-I : For faster action, n-p-n transistor is used Statement-...

    Text Solution

    |

  11. Statement-I : To be used as amplifier, the transistor in the common em...

    Text Solution

    |

  12. Statement-I : Many channels get allowed when transmission frequency is...

    Text Solution

    |

  13. Statement-I : Optical fibres are free from electromagnetic disturbance...

    Text Solution

    |

  14. Statement-I : Diode lasers are used as optical sources in optical comm...

    Text Solution

    |

  15. Statement-I : Electromagnetic waves with frequencies smaller than the ...

    Text Solution

    |

  16. Assertion : In optical fibre, the diameter of the core is kept small. ...

    Text Solution

    |

  17. Statement-I : For the same antenna length, power radiated by short wav...

    Text Solution

    |

  18. Statemet-1: the electrical conductivity of earth's atmosphere increase...

    Text Solution

    |

  19. Assertion:- Optical communication system is more economical than other...

    Text Solution

    |

  20. Statement-I : A communication satellite is essentially a repeater in s...

    Text Solution

    |