Optics Question 1085
Question: In Young’s double slit experiment, the phase difference between the light waves reaching third bright fringe from the central fringe will be (l =6000 Å )
[MP PMT 1994]
Options:
A) Zero
B) $ 2\pi $
C) $ 4\pi $
D) $ 6\pi $
Show Answer
Answer:
Correct Answer: D
Solution:
$ \because n=3,\ $
$\therefore 2n\pi =2\times 3\pi =6\pi $
