Optics Question 1128
Question: In Young’s double slit experiment, the central bright fringe can be identified
[KCET 2002]
Options:
A) By using white light instead of monochromatic light
B) As it is narrower than other bright fringes
C) As it is wider than other bright fringes
D) As it has a greater intensity than the other bright fringes
Show Answer
Answer:
Correct Answer: A
Solution:
When white light is used, central fringe will be white with red edges, and on either side of it, we shall get few coloured bands and then uniform illumination.
