A thin film with a refractive index of 1.52 is surrounded by air. What is the minimum thickness of this film that results in the minimization of reflected 540 nm light when such light is normally incident on the bubble?
Constructive interference is observed directly above an oil slick for wavelengths of 450 nm and 620 nm in air. The refractive index of the oil is 1.54. What is the film’s minimum possible thickness?
Monochromatic light of wavelength 589 nm is perpendicularly incident on two glass slides. The top slide touches the bottom slide at one end and rests on a 0.250 mm diameter hair at the other end, forming a wedge of air. How far apart are the dark bands in the resulting interference pattern if the slides are 6.50 cm long?