A security mirror used in a big showroom has radius of curvature 5 m. If a customer is standing at a distance of 20 m from the cash counter, find the position, nature and size of the image formed in the security mirror.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Determine the Focal Length
The radius of curvature (R) of the convex mirror is given as 5 m. The focal length (F) is calculated using the formula:
\[ F = \frac{R}{2} \]
Substituting the value of R:
\[ F = \frac{5}{2} = 2.5 \, \text{m} \]

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