### Correct Option: B. Real and inverted ### Detailed Explanation: When parallel rays of light strike a concave mirror, the behavior of the light rays and the characteristics of the image formed depend on the position of the object relative to the mirror's focal point and center of curvature. 1. **Understanding the Concave Mirror**: - A concave mirror is a spherical mirror that curves inward, resembling a portion of the interior of a sphere. - The **focal point (F)** is the point where parallel rays of light converge after reflecting off the mirror. It is located halfway between the mirror's surface and the center of curvature (C). - The **center of curvature (C)** is the center of the sphere from which the mirror is a part. 2. **Object Position**: - When the object is located **beyond the center of curvature (C)**, it means the object is placed at a distance greater than twice the focal length of the mirror (i.e., beyond 2F). 3. **Ray Diagram**: - To visualize this, you can draw a ray diagram: - Draw a concave mirror with its focal point (F) and center of curvature (C) marked. - Draw parallel rays coming from the object towards the mirror. - One ray should strike the mirror and reflect through the focal point (F). - Another ray should strike the mirror and reflect directly back through the center of curvature (C). - The intersection of these reflected rays will indicate the position of the image. 4. **Image Characteristics**: - When the object is beyond C, the reflected rays converge to form an image that is: - **Real**: The rays actually converge at a point in space, meaning the image can be projected onto a screen. - **Inverted**: The image is upside down compared to the object. ### Why Other Options Are Incorrect: - **Option A: Virtual and upright**: - This option is incorrect because a virtual image is formed when the object is located between the focal point (F) and the mirror. In this case, the rays do not converge but appear to diverge from a point behind the mirror, creating an upright image. - **Option C: Real and upright**: - This option is also incorrect. While the image is real when the object is beyond C, it is not upright; it is inverted. A real image cannot be upright when formed by a concave mirror in this configuration. - **Option D: Virtual and inverted**: - This option is incorrect because a virtual image cannot be inverted. Virtual images are always upright. They are formed when the object is within the focal length of the mirror. ### Summary of Key Points: - A concave mirror forms a **real and inverted image** when the object is placed beyond the center of curvature (C). - The image can be projected onto a screen, and its characteristics depend on the object's position relative to the focal point and center of curvature. - Understanding ray diagrams is crucial for visualizing how images are formed by mirrors. ### Revision Summary: - **Concave mirrors** reflect parallel rays to a focal point. - **Object beyond C** results in a **real and inverted image**. - **Ray diagrams** help visualize the image formation process. - **Image characteristics** depend on the object's position relative to F and C.