Question

Oil or soap film when in daylight appears coloured because of

Answer 1

Explanation:

Light reflects upward both from the top of the oil film and from the underlying interface between the oil and the water; the path length (the distance from the reflection to your eye) is slightly different depending on whether the returned light comes from the top or from the bottom of the oil film.

Answer 2

here is your answer

light effects of World War II from the top of the oil film and from the underline inter face between the foil and the water the path length( the distance from the reflection of your eye )slightly different depending on whether the returned light comes from the top of from the bottom of the oil film