Convex Mirrors

A convex mirror is a type of spherical mirror that bulges outwards. It is also known as a diverging mirror because it diverges light rays that strike it. Convex mirrors are commonly used in various applications, such as in automobile side mirrors, security mirrors, and as a part of CCTV systems.

Key Characteristics of Convex Mirrors:

1. Reflective Surface: The outer surface of a convex mirror is reflective, while the inner surface is non-reflective.
2. Curvature: The curvature of a convex mirror is such that it causes light rays to diverge upon reflection.
3. Virtual Image: Convex mirrors always produce virtual, upright, and diminished images of objects placed in front of them.

Reflection in Convex Mirrors:

When parallel light rays strike a convex mirror, they are reflected in such a way that they appear to diverge from a single point behind the mirror. This point is called the focal point, denoted by 'F'. The focal point is located halfway between the mirror's surface and its center of curvature.

Image Formation in Convex Mirrors:

When an object is placed in front of a convex mirror, its image is formed behind the mirror. The image formed is virtual, upright, and smaller in size compared to the actual object. The image is located between the focal point and the surface of the mirror.

Study Guide:

To understand convex mirrors better, it is important to focus on the following key points:

• Understand the difference between convex and concave mirrors
• Learn about the properties of the image formed by a convex mirror
• Practice drawing ray diagrams for different object positions in front of a convex mirror
• Explore real-world applications of convex mirrors and their significance

By mastering these concepts and practicing related problems, you can gain a comprehensive understanding of convex mirrors and their optical properties.

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