What do you understand by virtual image. Explain with examples.

Explanation

### Step-by-Step Text Solution:

**Step 1: Definition of Virtual Image**
A virtual image is an image formed by light rays that do not actually converge at a point. Instead, the light rays appear to diverge from a point behind the mirror or lens. This means that if you extend the reflected or refracted rays backward, they seem to meet at a point, but they do not actually meet in reality.

**Step 2: Characteristics of Virtual Images**
- Virtual images cannot be projected onto a screen because the light rays do not actually converge.
- They are typically upright (not inverted).
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