Problem 5: When the movable mirror of a Michelson interferometer is moved in one direction, 400 fringes appear to pass through the field of view when light of wavelength of 500 nm is used. What is the distance through which the mirror has been moved?
Solution
Given data
No of fringes observed = n = 400, wavelength used = 500 × 10-9 m
Required
Distance through which the mirror is moved = P =?
Formula
Now put the values in the formula,
Pingback:Numerical Problems, Physical Optics, … msa – msa