An object is placed at a distance of 50cm from a concave lens of focal length 20cm. Find the nature and position of the image.

Explanation

To solve the problem of finding the nature and position of the image formed by a concave lens, we will use the lens formula and follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Object distance (U) = -50 cm (The object distance is taken as negative for concave lenses as per the sign convention)
- Focal length (F) = -20 cm (The focal length of a concave lens is also negative)

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