Optics Question 860
Question: Two light waves having the same wavelength in vacuum are in phase initially. Then the first ray travels a path of length through a medium of refractive index . The second ray travels a path of length through a medium of refractive index . The two waves are then combined to observe interference effects. The phase difference between the two, when they interfere, is
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Effective path difference is