Optics Question 847
Question: Interference fringes were produced in Young’s double slit experiment using light of wave length . When a film of material thick was placed over one of the slits, the fringe pattern shifted by a distance equal to 20 fringe width. The refractive index of the material of the film is
Options:
A) 1.25
B) 1.33
C) 1.4
D) 1.513
Show Answer
Answer:
Correct Answer: C
Solution:
[c]