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The problem asks for the correct distance at which the camera lens should be focused when taking a photograph of yourself while looking at your reflection in a flat mirror. The mirror is positioned 1.5 meters away from you.

### Solution:

1. The distance from you to the mirror is 1.5 meters.
2. In a flat mirror, your image appears as far behind the mirror as you are in front of it. This means your image will also appear to be 1.5 meters behind the mirror.
3. Therefore, the total distance from the camera (which is located at your position) to the image of yourself is:
   
   \[
   \text{Total distance} = 1.5 \, \text{m (to the mirror)} + 1.5 \, \text{m (from the mirror to your image)} = 3.0 \, \text{m}
   \]

So, the camera should be focused at a distance of **3.0 meters**.

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Here are 5 related questions for further understanding:
1. How does the law of reflection help explain image formation in flat mirrors?
2. What happens if the mirror is curved instead of flat? How would the camera focusing distance change?
3. If the camera is moved closer to the mirror, how would the focusing distance change?
4. Can the mirror’s orientation or position affect how the image is perceived?
5. What would happen if the mirror were tilted slightly—would the perceived distance to the image change?

**Tip:** When dealing with reflections, always remember that in a flat mirror, the distance from the object to the mirror is equal to the distance from the mirror to the image.

Suppose that you want to take a photograph of yourself as you look at your image in a flat mirror 1.5 m away. For what distance should the camera lens be focused?

Discover how to calculate the correct camera focusing distance when photographing yourself in a flat mirror 1.5 meters away. The problem involves basic optics concepts, including the law of reflection and image formation in flat mirrors. Suitable for high school students (Grades 9-12).

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