In Michelson's interferometer the yellow sodium line composed of two wavelengths `lambda_(1) = 589.0 nm` and `lambda_(2) = 589.6nm` was used. In the process of translational displacemnet of one of the mirrors the interference pattern vanished periodically (why?). Find the displacement of the mirror between two successive appearances of the sharpest pattern.

In a two-beam interferometer the orange mercury line composed of two wavelengths lambda_(1) = 576.97 nm and lambda_(2) = 579.03 nm is employed. What is the least order of interference at which the sharpness of the fringe pattern is the worst ?

In young's double-slit experiment, the slit are 2 mm apart and are illuminated with a mixture ot two wavelengths lambda_(0) = 750 nm and lambda = 900 nm , The minimum distance from the common central bright fringe on a screen 2 m from the slits, where a bright fringe from one interference pattern coincides with a bright fringe from the other, is

In young's double-slit experiment, the slit are 2 mm apart and are illuminated with a mixture ot two wavelengths lambda_(0) = 750 nm and lambda = 900 nm , The minimum distance from the common central bright fringe on a screen 2 m from the slits, where a bright fringe from one interference pattern coincides with a bright fringe from the other, is

In young's double slit experiment , the slits are 2mm apart and are illuminated by photons of two wavelength lambda_1=12000overset@A and lambda_2=10000 overset@A . At what minimum distance from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other?

In a Young’s double slit experiment, the slits separated by 1 mm are illuminated by a mixture of two wavelengths lambda = 600 nm and lambda' = 750 nm . The distance of screen from slits is 1 m. The minimum distance from the common central bright fringe where the bright fringe of one interference pattern will coincide with the bright fringe of second interference pattern will be :

A young's experiment ,the separation between the slits is 0.10mm .the wavelength of light is used is 600nm and the interfernce pattern is observed on screen 1.0m away,Find the separation between the successive bright firgness.

In a Young's double slit experiment, the slits are 2mm apart and are illuminated with a mixture of two wavelength lambda_0=750nm and lambda=900nm . The minimum distance from the common central bright fringe on a screen 2m from the slits where a bright fringe from one interference pattern coincides with a bright fringe from the other is