Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Electronic Devices question

2005 · Shift 0 · Q139
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Electronic Devices
  5. /2005 · Shift 0 · Q139

Electronic Devices question

2005 · Shift 0 · Q139

JEE MainPhysicsElectronic DevicesMCQ+4 / −1
The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480nm2480nm2480nm is incident on it. The band gap in (eV)(eV)(eV) for the semiconductor is
  1. A
    2.5eV2.5eV2.5eV
  2. B
    1.1eV1.1eV1.1eV
  3. C
    0.7eV0.7eV0.7eV
  4. D
    0.5eV0.5eV0.5eV
PreviousNext

More from Electronic Devices

  • The manifestation of band structure in solids is due to2004 · MCQ
  • A piece of copper and another of germanium are cooled from room temperature to 77K, the resistance of2004 · MCQ
  • When p-n junction diode is forward biased then2004 · MCQ
  • In the middle of the depletion layer of a reverse- biased p-n junction, the2003 · MCQ
  • A strip of copper and another of germanium are cooled from room temperature to 80K. The resistance of2003 · MCQ
  • The difference in the variation of resistance with temperature in a metal and a semiconductor arises essentially due to the difference in the2003 · MCQ
  • The energy band gap is maximum in2002 · MCQ
  • At absolute zero, Si acts as2002 · MCQ