If L is the coherence length and c the velocity of light, th... | PHYSICS - COHERENT AND INCOHERENT ADDITION OF WAVES | SolveeIt | Solveeit

Today, August 19

Question

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

A

cL

B

$\frac{L}{c}$

C

$\frac{c}{L}$

D

$\frac{1}{Lc}$

Answer

$\frac{L}{c}$

Explanation

Solution

Coherent time $= \frac{Coherence\mspace{6mu} length}{Velocity\mspace{6mu} of\mspace{6mu} light} = \frac{L}{c}$ .