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Matching Questions - Engineering

Q1:

Match the following:
  List I   List II
A. LED 1. Heavy Doping
B. Avalanche Photodiode 2. Coherent Radiation
C. Tunnel diode 3. Spontaneous Emission
D. LASER 4. Current gain

A A-2, B-4, C-3

B A-2, B-3, C-1, D-4

C A-3, B-4, C-1, D-2

D A-2, B-1, C-4, D-3

ANS:C - A-3, B-4, C-1, D-2

No answer description is available.