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प्रश्न
Apparatus: A glass, water, a large white sheet of paper
Place a glass filled with water on a sheet of paper in the window so that it receives direct sunlight. What is seen on the paper?
Can we do the same in a dark room with the help of a prism and a torch? What do we learn from this?
कृति
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उत्तर
- When the glass filled with water is placed in direct sunlight, a band of seven colours like a rainbow is seen on the white sheet of paper.
- Yes, the same effect can be produced in a dark room by passing the light of a torch through a prism.
- From this activity, we learn that white light is made up of seven colours. When white light passes through water or a prism, it gets separated into these colours.
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