In an experiment similar to young's experiment,interference is observed using waves associated with electrons.The electrons are being produced in an electron gun.In order to increase the fringe width .

In an experiment similar to Young's experiment , interference is observed using waves associated with electrons . The electrons are being produced in electron gun . In order to increase the fringe width

In Youngs double slit experiment, to increase the fringe width

In Young's double slit experiment, the interference bright fringes are of: