210 likes | 851 Views
Young’s double slit experiment. Division of Wavefront. Michelson Interferometer. Division of Amplitude. Effective Arrangement. Fringe Conditions. Dark. Circular Fringes. Central Dark Fringe. Fringe Spacing. Increasing d. Measuring Wavelength. Close Spectral Lines.
E N D
Young’s double slit experiment Division of Wavefront
Michelson Interferometer Division of Amplitude
Fringe Conditions Dark
Close Spectral Lines Example Sodium 589.0 nm and 589.6 nm
Michelson Interferometer Observer Year Arm length (in m) Michelson 1881 1.2 Michelson & Morley 11.0 1887 Miller 1902-1926 32.0 1929 Michelson et al 25.9 21.0 Joos 1930
Ligo Arm Length 4 km Hanford and Livingston in USA Caltech, MIT and other US Universities