Lesson: Thin-Film Interference

A light wave that travels in a medium with a refractive index is incident on and reflects from a medium with a refractive index . By how many degrees does the phase of the light wave change when it reflects if ?

A light wave that travels in a medium with a refractive index is incident on and reflects from a medium with a refractive index . By how many degrees does the phase of the light wave change when it reflects if ?

A window is coated with an antireflective film 116 nm thick that has a refractive index of 1.24. For what wavelength of light does the film produce destructive interference?