Many of the semi conductors are crystals of the type__________________?

Related Mcqs:

1. Semi-conductors with donor atoms and free electrons belong to the type________________?

   A. n
   B. p
   C. mix
   D. any of above

2. The breaking of crystals along definite direction is called _____________________?

   A. Cleavage
   B. Symmetry
   C. Isotropy
   D. Homogeneity

3. Optical active crystals rotates the __________________?

   A. vibrating plane
   B. polarization plane
   C. diffraction plane
   D. interference plane

4. Crystals of a material can behave as_________________?

   A. Convex lens
   B. Interferometer
   C. Diffraction grating
   D. Concave

5. Which one of following band is completely filled in case of conductors ?

   A. Conduction band
   B. Fermi band
   C. Valence band
   D. Forbidden band

6. With increase in temperature the electrical conductivity of intrinsic semi conductor___________________?

   A. Decreases
   B. Increases
   C. Remains same
   D. First increases then decreases

7. Forward current through a semi conductor diode circuit is due to____________?

   A. minority carriers
   B. majority carriers
   C. holes
   D. electron

8. The specially designed semi-conductor diodes used as fast counters in electronic circuits are______________?

   A. The light emitting diodes
   B. Photo diodes
   C. Photo voltaic cell
   D. Solar cells.

9. To obtain a p-type semi-conductor Si Crystal must be doped with foreign atoms whose valency is_____________?

   A. 2
   B. 3
   C. 4
   D. 5

10. The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?

    A. The light emitting diodes
    B. Photo diodes
    C. Photo voltaic cell
    D. Solar cells.