Question

what does the image formed by convex lens depend upon

Answer 1

Convex lens is a converging lens, in which parallel rays of light pass through and refracted rays converge at one point called the principal focus. The characteristics of the images formed in a convex lens depends on the location of the object in front of a convex lens. For example when the object is located beyond 2F (center of curvature) the image formed will be real, inverted and diminished, and  so forth for other positions of the object.

Answer 2

Images produce by convex lens are dependent on the focal length of the lens as well as the distance between the object and the lens. The distance between the center of the lens and the focal point is referred to as the focal length of the lense. At the focal point, light will converge as it passes through the lens. Lenses have the ability to create numerous different image sizes and orientations. Generally, the images are based on the lens' focal length as well as where the object is location.