Laws from Convex Mirror
- Law 1: A ray of light which is parallel to the optic axis or principal axis of a convex mirror seems to be coming from its principal focus after reflection from the mirror.
- Law 2: A ray of light going towards the centre of curvature is reflected along the same path.
- Law 3: A ray of light going to the principal focus of a convex mirror becomes parallel to the principal axis reflection.
- Law 4: A ray of light which is incident at the pole of a convex mirror is reflected giving the same angle with the principal axis.
Image generation a convex mirror
- When the object is placed in the infinity, the image is formed behind the mirror at F. The size of the image is highly diminished, virtual and erect.
- When the object is placed in between P and infinity, the image is formed behind the mirror, which is virtual, erect and diminished.
Uses of Convex Mirrors
- Used in Rearview mirrors in vehicles, as it provides an erect and wider view.
- Convex mirrors installed on roads as traffic safety, in bends, mountain passes.
- Also used in blind spots in shops.