The power of a lens is -5 D.
Name the type of lens.

Explanation

To determine the type of lens based on the given power, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Information**:
- The power of the lens (P) is given as -5 D (diopters).

2. **Understand the Relationship Between Power and Focal Length**:
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