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Question
Make a rainbow
Try to make your own rainbow. You can try this project in the morning or in the evening. Stand with your back towards the Sun. Take a hosepipe or a water pipe used in the garden. Make a fine spray in front of you. You can see different colours of rainbow in the spray.
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Solution
Make a Rainbow
Materials:
- Hosepipe or garden water pipe
- A sunny day (morning or evening is ideal)
Procedure:
- Stand with your back towards the Sun.
- Hold the hosepipe or garden water pipe in front of you.
- Turn on the water and create a fine spray by partially covering the nozzle with your thumb.
Observation:
- You will see different colours of the rainbow forming in the spray of water.
Explanation:
- When sunlight passes through the water droplets in the spray, it gets refracted, reflected, and dispersed.
- This process splits the sunlight into its constituent colours, forming a spectrum that appears as a rainbow.
Conclusion:
- By using a hosepipe to create a fine spray of water with the Sun behind you, you can observe the formation of a rainbow. This demonstrates the principles of refraction, reflection, and dispersion of light.
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