Fill in the following blanks with suitable words :
A prism splits sunlight into _____________ colours.

Answer

To fill in the blank in the sentence "A prism splits sunlight into _____________ colours," we need to identify how many colors are produced when sunlight passes through a prism.

### Step-by-Step Solution:

1. **Understanding Sunlight**: Sunlight, also known as white light, is made up of multiple colors.

2. **Function of a Prism**: A prism is a transparent optical element that refracts (bends) light. When white light passes through a prism, it is separated into its constituent colors due to the different degrees of bending for each color.

3. **Identifying the Colors**: The colors that sunlight is split into are commonly known as the colors of the rainbow. These colors are:
- Red
- Orange
- Yellow
- Green
- Blue
- Indigo
- Violet

4. **Counting the Colors**: There are a total of seven distinct colors that result from this splitting of sunlight.

5. **Filling in the Blank**: Therefore, the complete sentence would read: "A prism splits sunlight into **seven** colours."

### Final Answer:
A prism splits sunlight into **seven** colours.

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