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Question
Case: Pooja did an experiment with an equilateral glass prism in which she projected a narrow beam of white light source from one side of the surface of the prism and placed a screen on the other side of the prism. She observed certain patches of different colours on the screen. Later, she repeated the same experiment with a red-light source, however, she could only observe a red coloured patch on the screen. Again, she repeated the experiment with blue and green light sources, respectively, and could only see one colour patch on both the occasions.
Which of the following natural phenomena could she also relate to which is similar to the one she observed in the experiment?
Which of the following natural phenomena could she also relate to which is similar to the one she observed in the experiment?
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Solution
The correct option is C Formation of rainbow
Formation of rainbow is the natural phenomena that is also based on dispersion of white light. It can be observed on a rainy humid day when the sun is out. Here, the water droplets present in the stmosphere acts as tiny prisms and they disperse the white sunlight into its constituent seven different colours, which we see as the rainbow.
Formation of rainbow is the natural phenomena that is also based on dispersion of white light. It can be observed on a rainy humid day when the sun is out. Here, the water droplets present in the stmosphere acts as tiny prisms and they disperse the white sunlight into its constituent seven different colours, which we see as the rainbow.
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