Name the region just beyond (i) the red end, and (ii) the violet end, of the spectrum.

Answer

To answer the question regarding the regions just beyond the red and violet ends of the spectrum, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Visible Spectrum**: The visible spectrum consists of various colors that can be seen by the human eye, which are often remembered by the acronym "VIBGYOR" (Violet, Indigo, Blue, Green, Yellow, Orange, Red).

2. **Identifying the Red End**: The red end of the visible spectrum is the longest wavelength part of the spectrum.

3. **Region Beyond the Red End**: The region just beyond the red end of the visible spectrum is known as the **Infrared** region. Infrared waves have longer wavelengths than red light and are not visible to the human eye.

4. **Identifying the Violet End**: The violet end of the visible spectrum is the shortest wavelength part of the spectrum.

5. **Region Beyond the Violet End**: The region just beyond the violet end of the visible spectrum is known as the **Ultraviolet** region. Ultraviolet waves have shorter wavelengths than violet light and are also not visible to the human eye.

### Final Answer:
(i) The region just beyond the red end of the spectrum is **Infrared**.
(ii) The region just beyond the violet end of the spectrum is **Ultraviolet**.

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