Refractive index of a thin soap film of a uniform thickness is 1.34. Find the smallest thickness of the film that gives in interference maximum in the reflected light when light of wavelength `5360 Å` fall at normal incidence.

Refractive index of a thin soap film of a uniform thickness is 1.38. The smallest thickness of the film that gives an interference maxima in the reflected light when light of wavelength 5520 Å falls at normal incidence is

An oil film covers the surface of a small pond. The refractive index of the oil is greater than that of water. At one point on the film, the film has the smallest non-zero thickness for which there will be destructive interference in the reflected light when infrared radiation with wavelength 800 nm is incident normal to the film. When this film is viewed at normal incidence at this same point, for what visible wavelengths, if any, will there be constructive interference? (Visible light has wavelengths between 400nm and 700 nm )

A lens ( mu=1.5 ) is coated with a thin film of refractive index 1.2 order to reduce the reflected form its surface at lambda=4800Å .Find the maximum thickness of the film which will minimized the intensity of the reflected light .(Assume near normal incidence)

What is the minimum thickness of a thin film (mu=1.2) that results in constructive interference in the reflected light? If the film is illuminated with light whose wavelength in free space is lambda=500nm ?

A light of wavelength 5890Å falls normally on a thin air film. The minimum thickness of the film such that the film appears dark in reflected light is

Calculate the minimum thickness of a soap bubble film (mu=1.33) that results in constructive interference in the reflected light if the film is illuminated with light whose wavelength in free space is lambda=600nm .

Find the minimum thcknessof a film which will strongly reflect the light of wavelength 589 nm. The refractive index of the material of the film is 1.25.