In an electronic transition atom cannot emit______________?

Related Mcqs:

1. Photon of highest frequency will be absorbed when transition takes place from_____________?

   A. 1st to 5th orbit
   B. 2nd to 5th orbit
   C. 3rd to 5th orbit
   D. 4th to 5th orbit

2. Bracket series is obtained when all transition of electron terminate on_______________?

   A. 4th orbit
   B. 5th orbit
   C. 3rd orbit
   D. 2nd orbit

3. Ratio of the weight of H-atom to that of an electron is approximately______________?

   A. 18.336
   B. 1836
   C. 18360
   D. 183.6

4. Hydrogen atom does not emit X-rays because _________________?

   A. its energy levels are too close to each other
   B. its energy levels are too far apart
   C. it is too small in size
   D. it has a single electron

5. Ground state energy of the 4th orbit in a H-atom is_____________?

   A. 13.60 eV
   B. 3.40 eV
   C. 0.85 eV
   D. 1.51 eV

6. The metastable state for an atom in laser light is_____________?

   A. 10-4 sec
   B. 10-5 sec
   C. 10-3 sec
   D. 10-8 sec

7. The especially designed semiconductor diodes used as indicator lamps in electronic circuits are___________?

   A. The switch
   B. The light emitting diode
   C. The photo diodes
   D. Solar cells.

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. The electronic circuits which implement the various logic operations are called_____________?

   A. Logic gates
   B. Boolean algebra
   C. Amplifier gain
   D. Logic functions

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.