In: Physics
A double-slit experiment is set up using red light (λ = 711 nm). A first order bright fringe is seen at a given location on a screen.
1)What wavelength of visible light (between 380 nm and 750 nm) would produce a dark fringe at the identical location on the screen?
λ =
2) A new experiment is created with the screen at a distance of 1.9 m from the slits (with spacing 0.11 mm). What is the distance between the second order bright fringe of light with λ = 698 nm and the third order bright fringe of light with λ = 409 nm? (Give the absolute value of the smallest possible distance between these two fringes: the distance between bright fringes on the same side of the central bright fringe.)
|x| =