edited by
149 views
0 votes
0 votes

An infrared $\text{LED}$ is usually fabricated from

  1. $\text{Ge}$
  2. $\mathrm{Si}$
  3. $\text{Ga As}$
  4. $\text{Ga As P.}$
edited by

Please log in or register to answer this question.

Answer: