Splitting of white light into seven colours is called :

Options

A. Reflection
B. Refraction
C. Dispersion
D. None

Answer

**Step-by-Step Solution:**

1. **Understanding White Light**: White light is a mixture of various colors. When it passes through a medium, it can be separated into its constituent colors.

2. **Using a Prism**: A common method to split white light is by using a prism. When white light enters the prism, it bends (refracts) due to the change in medium.

3. **Dispersion of Light**: As the light passes through the prism, it is not only refracted but also dispersed. This means that the different colors of light are spread out, creating a spectrum.

4. **Identifying the Colors**: The spectrum produced consists of seven distinct colors, which can be remembered using the acronym VIBGYOR:
- V: Violet
- I: Indigo
- B: Blue
- G: Green
- Y: Yellow
- O: Orange
- R: Red

5. **Conclusion**: The phenomenon of splitting white light into seven colors is called "Dispersion of Light."

**Final Answer**: Dispersion of Light

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