Problem 3: When the movable mirror of the Michelson interferometer is moved 0.1 mm. How many dark fringes pass the reference point if light of wavelength 580 nm is used?
Solution
Given data
Distance through which the mirror is moved = P = 0.1 mm = 1 × 10-4 m
Wavelength used = λ = 580 nm = 580 × 10-9 m
Asked data
No of fringes = n =?
Formula
Put the values in the formula
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