A thin soap film of thickness `3 xxx 10^(-7)m` and `mu = 1.5` is spreaded on a glass surface. When white light is normally incident on this sheet, find the colour which will be reflected strongly by the film.
`[4500Å]`

A thin transparent film of thickness 3000 Å and refractive index 1.5 ud deposited on a sheet made of a metal. Assuming normal incidence of light and also that the film is a plane parallel one, what will be the color of a pot made from this sheet when observed in white light?

A thin transparent film of thickness 3000 Å and refractive index 1.5 ud deposited on a sheet made of a metal. Assuming normal incidence of light and also that the film is a plane parallel one, what will be the color of a pot made from this sheet when observed in white light?

When light is incident on a soap film of thickness 5 xx 10^(-5)cm , wavelength which is maximum reflected in the visible region is 5320Å . The refractive index of the film will be :

White light falls normally on a film of soap water whose thickness is 5xx10^(-5)cm and refractive index is 1.40. The wavelengths in the visible region that are reflected the most strongly are :

An oil film (n = 1.45) floating on water is illuminated by white light at normal incidence. The film is 280 nm thick. Find (a) the color or the light in the visible specturm most strongly reflected and (b) the color of the light in the specturm most strongly transmitted. Explain your reasoning.