Show that the optical path difference between successive rays i... | Filo

When a beam of light passes through different glass shapes, its path changes because of refraction. Refraction happens when light moves from one medium to another—such as from air into glass—and its speed changes. This speed change forces the light to bend, and the exact direction of that bending depends entirely on the shape of the glass it travels through. In this setup, parallel red light rays first encounter different optical elements. A convex lens (thicker at the center) bends light inward

A thin film with index of refraction n = 1.40 is placed in on... | Filo

SOLVED:A thin film with index of refraction n=1.44 is placed in one arm of a Michelson interferometer, perpendicular to the optical path. If this causes a shift of 7.0 bright fringes of the pattern produced by light of wavelength 589  nm, what is the film thickness?