Upto what maximum distance from a concave mirror, the image can be obtained ? What will be the location of object for it?

Answer

To determine the maximum distance from a concave mirror at which an image can be obtained, we need to analyze the properties of concave mirrors and the formation of real images.

### Step-by-Step Solution:

1. **Understanding Image Formation**:
- A concave mirror can produce both real and virtual images depending on the position of the object relative to the mirror.
- A real image is formed when the object is placed beyond the focal point (F) of the mirror.

2. **Identifying Key Points**:
- The key points of a concave mirror include:
- **Pole (P)**: The central point of the mirror.
- **Focus (F)**: The point where parallel rays of light converge after reflecting off the mirror.
- **Center of Curvature (C)**: The center of the sphere of which the mirror is a part.

3. **Position of the Object for Real Image**:
- For a real image to be formed, the object must be placed outside the focus (F) and can be at any distance from the focus to infinity.
- Therefore, the object can be located anywhere from the focal point (F) to infinity.

4. **Maximum Distance**:
- The maximum distance from the concave mirror at which the image can be obtained is theoretically infinite.
- This means that as the object moves further away from the mirror, the image continues to be real and can be projected onto a screen.

5. **Conclusion**:
- The maximum distance from a concave mirror for obtaining a real image is infinity, and the object must be located at any point from the focus (F) to infinity.

### Final Answer:
The maximum distance from a concave mirror at which an image can be obtained is infinity, with the object located anywhere from the focus (F) to infinity.