a) Find the position and size of the virtual image formed when an object 2 cm tall is placed 20 cm from:
i) a diverging lens of focal length 40 cm.
ii) a converging lens of focal length 40 cm.

Explanation

To solve the problem of finding the position and size of the virtual image formed by both a diverging lens and a converging lens, we will follow these steps:

### Part a) i) Diverging Lens

1. **Identify Given Values**:
- Object height (h_o) = 2 cm
- Object distance (u) = -20 cm (negative as per sign convention)
- Focal length (f) = -40 cm (negative for diverging lens)
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