A Michelson interferometer is irradiated with light of wavelength 633 nm (He-Ne laser). When one of...
A Michelson interferometer is irradiated with light of wavelength 633 nm (He-Ne laser). When one of the mirrors is moved, 800 fringe pairs (each fringe pair is an adjacent dark and bright line) pass by a fixed point in the viewing pattern. How far was the mirrow moved?
Homework Answers
The mirror was moved
d = m*(wavelength)/2
where
wavelength = 633 nm
m = 800
Thus, the mirror was mnoved by
d = 800*633/2 nm
d = 253200 nm or 0.253 mm [ANSWER]
DONE! It was nice working with you!
in Michelson interferometer,
the moved by the mirror is ,
(x2-x1)=N*lambda/2
=800*633*10^-9/2
=2.532*10^-4 m
=0.2532 mm ..............is answer
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