A convex mirror's image distance is the distance between the object and its image formed by the mirror. It is measured from the mirror's surface to the image.
In a convex mirror, the image distance is always smaller than the object distance. This means that the image formed by a convex mirror will always be smaller than the actual object.
The image distance in a convex mirror is affected by the radius of curvature of the mirror, the distance of the object from the mirror, and the size of the object. A larger radius of curvature and a smaller object distance will result in a smaller image distance.
The image distance in a convex mirror can be calculated using the formula 1/f = 1/o + 1/i, where f is the focal length of the mirror, o is the object distance, and i is the image distance.
Yes, the image distance can be negative in a convex mirror when the object is located between the mirror's surface and its focal point. This results in a virtual image that is upright and smaller than the object.