34. Wave Optics
Diffraction
34. Wave Optics Diffraction
11PRACTICE PROBLEM
A helium-neon laser of wavelength 632.8 nm is used with a Michelson interferometer. When the movable mirror of the interferometer is displaced by 0.85 mm, m bright fringes are observed to move past a reference line. Determine the number of fringes 'm'.
A helium-neon laser of wavelength 632.8 nm is used with a Michelson interferometer. When the movable mirror of the interferometer is displaced by 0.85 mm, m bright fringes are observed to move past a reference line. Determine the number of fringes 'm'.