Answer: Equiconvex lenses are also known as bi-convex lenses. Equiconvex lenses are those lenses in which the radius of both the surfaces is the same. Focal lengths come in positive in the case of these lenses making them most suitable for producing real images in the magnification ratio of 1:1.
This type of convex lens has an equal slope of two opposite curved surfaces. An equiconvex lens has a power of 5 dioptres. The radius of curvature of either face of such lenses is basically equal to the focal length of such lenses. The radius of curvature of such lenses is ‘0.2m’.