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Opto Electronics – 20

20. Match the items in Group I with items in Group II most suitably
          Group I                                                          Group II
            (P) LED                                                         (1) Heavily doped
            (Q) Avalanche photo diode                       (2) Coherent radiation
            (R) Tunnel diode                                         (3) Spontaneous emission
            (S) LASER                                                     (4) Current gain

(a) P-2, Q-1, R-3, S-4
(b) P-4, Q-3, R-2, S-1
(c) P-3, Q-4, R-1, S-2
(d) P-3, Q-2, R-1, S-4

Answer : (c)

Explanation : No answer description available for this question. Let us discuss.

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