If L is the coherence length and c the velocity of light, the coherent time is

Options :
  1. cL
  2. L/c
  3. c/L
  4. 1/Lc
Answer and Explanation :-

Answer: Option 2

Explanation:

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Pieces. A bit for someone here. A bit there. And sometimes they don't add up to anything whole. But you are so busy dancing. Delivering. You don't have time to notice. Or are afraid to notice. And then one day you have to look. And it's true. All of your pieces fill up other people's holes. But they don't fill your own.
-Mary E. Pearson The Adoration of Jenna Fox