When one mirror of a Michelson Interferometer is moved a distance of – McqOptions

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1.	When one mirror of a Michelson Interferometer is moved a distance of 0.5 mm we observe 2000 fringes. What will be wavelength of light used ?
A.	5000 nm
B.	5000A
C.	500m
D.	2000um
Answer» C. 500m

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