Define real image of an object.

Explanation

### Step-by-Step Solution:

1. **Understanding the Concept of Image Formation**:
- An image is formed when light rays converge or diverge after interacting with an optical device, such as a lens or mirror.

2. **Definition of Real Image**:
- A real image is formed when light rays actually converge at a point after passing through a lens or reflecting off a mirror.

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