Optics Question 174
Question: The ratio of the intensity at the centre of a bright fringe to the intensity at a point one-quarter of the distance between two fringe from the centre is
Options:
A) 2
B) 1/2
C) 4
D) 16
Show Answer
Answer:
Correct Answer: A
Solution:
Since the phase difference between two successive fringes is
the phase difference between two points separated by a distance equal to one quarter of the distance between the two, successive fringes is equal to
Using (i) and (ii),
