Author Question: White-light LEDs employ A) phosphors. B) white-emitting diodes. C) extra-high electrical ... (Read 50 times)

newbem

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White-light LEDs employ
 
  A) phosphors.
  B) white-emitting diodes.
  C) extra-high electrical barriers.
  D) none of the above

Question 2

Which of these lamps employs semi-conductor technology?
 
  A) incandescent lamp
  B) fluorescent lamp
  C) CFL
  D) LED



scottmt

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Answer to Question 1

Answer: A

Answer to Question 2

Answer: D



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