We know that the bending of the Lens causes the Length of the focus. Now, this combination or separation will depend on how much the Lens is bent. The Power of the Lens is the level at which the Lens meets or separates the light source from it. This equation is used to find image distance for either real images or virtual images. If this equation shows a negative (-ve) focal length, then the lens is a diverging lens rather than the converging lens. If the equation shows a negative (-ve) image distance, then the image is a virtual image on the same side of the lens as the object. This lens formula is applicable to both the concave lens and convex lens. This lens formula is applicable to all situations and with appropriate sign conventions. U = Distance of the object from the lens. Lens equation or lens formula is an equation that relates the focal length, image distance, and object distance for a spherical mirror.
Lens formula is applicable for concave as well as convex lenses. In optics, the relationship between the distance of an object (o), the distance of an image (i), and the focal length (f) of the lens are given by the formula which is known as the Lens formula. The image distance can be calculated with the knowledge of object distance and focal length with the help of the lens formula. Images formed by these convex lenses can be real or virtual depending on their position from the lens and can have a different size too. Convex lenses can also be known as converging lenses since the rays converge after falling on the convex lens while the concave lens is known as diverging lenses as the rays diverge after falling on the concave lens.
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