An extended object is placed perpendicular to the principal axis of a concave mirror of radius of curvature 20cm at a distance of 15 cm from the pole. Find the lateral magnification produced.

Explanation

To solve the problem of finding the lateral magnification produced by a concave mirror when an extended object is placed perpendicular to the principal axis, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Given Values**:
- Radius of curvature (R) = 20 cm
- Object distance (U) = -15 cm (the negative sign indicates that the object is in front of the mirror)

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