Question:
The phenomena of light involved in the formation of a rainbow are:
The phenomena of light involved in the formation of a rainbow are:
Updated On: Jun 9, 2025
- Refraction, reflection and dispersion
- Refraction, dispersion and internal reflection
- Reflection, dispersion and internal reflection
- Refraction, dispersion, scattering and total internal reflection
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The Correct Option is B
Solution and Explanation
Step 1: Understand what a rainbow is
A rainbow is a natural spectrum of light appearing in the sky, typically after rain, when sunlight interacts with water droplets in the atmosphere.
Step 2: Identify the phenomena involved
The formation of a rainbow involves the following optical phenomena:
1. Refraction: When sunlight enters a raindrop, it bends (refracts) at the air-water boundary.
2. Dispersion: Inside the drop, light splits into its constituent seven colours due to varying refractive indices for different wavelengths.
3. Internal reflection: The dispersed light reflects off the inner surface of the raindrop.
4. Refraction again: The light exits the drop and refracts once more, spreading out to form the rainbow.
Step 3: Conclusion
The key phenomena responsible for rainbow formation are:
Refraction, dispersion and internal reflection
A rainbow is a natural spectrum of light appearing in the sky, typically after rain, when sunlight interacts with water droplets in the atmosphere.
Step 2: Identify the phenomena involved
The formation of a rainbow involves the following optical phenomena:
1. Refraction: When sunlight enters a raindrop, it bends (refracts) at the air-water boundary.
2. Dispersion: Inside the drop, light splits into its constituent seven colours due to varying refractive indices for different wavelengths.
3. Internal reflection: The dispersed light reflects off the inner surface of the raindrop.
4. Refraction again: The light exits the drop and refracts once more, spreading out to form the rainbow.
Step 3: Conclusion
The key phenomena responsible for rainbow formation are:
Refraction, dispersion and internal reflection
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