In Michelson ‘s interferometer 100 fringes cross the field view when the movable mirror is displaced through 0.0248 mm. Calculate the wavelength of monochromatic light used
A. 5896 A 0 B.5890 A 0 C.4000 A 0 D. 4890 A 0
A. 5896 A 0 B.5890 A 0 C.4000 A 0 D. 4890 A 0