What type of mirror is used whenever a magnified image of an object is needed?
They say its convex but why? i though convex mirrors reduce an abject ?? plz help
Convex Mirror
When a magnified image of an object is needed, a convex mirror is used. This might seem counterintuitive because convex mirrors are typically associated with reducing the size of objects. However, the key here lies in the positioning of the object and the observer in relation to the convex mirror.
Convex mirrors have a curved outward shape, which causes light rays to diverge (spread out) after they reflect off the mirror surface. This divergence of light rays forms a virtual, upright, and diminished image. This is why convex mirrors are commonly used in situations where a larger field of view is desired, such as in car side mirrors or store surveillance systems.
But when an object is placed very close to a convex mirror, within its focal length, the light rays diverge even more, creating a magnified image. This is because the light rays that originate from a point on the object are further apart when they reach the mirror, allowing the observer to perceive a larger image of the object.
So, while convex mirrors generally reduce the size of objects when they are farther away, they can also provide a magnified image when the object is positioned close to the mirror.