Kerosene oil is spread on stagnant water to prevent malaria and dengue. A child saw beautiful colours in this oil film when illuminated by white light explain the phenomena which causes this? Is the same phenomena involved in coloured soap bubbles? Explain
Answers
Answer: A child saw beautiful colors in this oil film when illuminated by white light. This is due to the thin film interference phenomenon. The same phenomena involved in the colored soap bubbles also.
Explanation:
Thin film interference is a natural phenomenon in which the light reflected by the lower and upper boundaries of a thin film interfere with one another.
In the given problem, a child saw beautiful colors in this oil film when illuminated by white light. This is due to the thin film interference phenomenon.
The brightest colors are due to the constructive interference.
There is an interference between light reflected from the different surfaces of a thin film. The destructive and the constructive interference of the reflected waves causes the colorful pattern.
The same phenomena involved in the colored soap bubbles also.