This is the general equation of lens. This formula has been obtained for formation of real image by a convex lens. But this formula is equally applicable for the formation of virtual image by a convex lens or for the concave lens. If the surrounding medium be air, then µ1= µ3= 1...
Focal length is the distance between a lens and its focal point, while the focal point is the point at which parallel light rays converge or diverge. Convex lenses have positive focal lengths, whereas the focal lengths of concave lenses are negative. Focal length is calculated with the ...
The lens is a refracting device consisting of a transparent material. It can have two curved surfaces or one curved and one plane surface. The lenses can be classified as converging (convex) and diverging lenses (concave). Lens maker’s formula relates the focal length, radii of curvature of...
the convex lens formula is used for converging light rays, while the convex mirror formula is used for diverging light rays. Additionally, the focal lengths of a
and diverging if the focal length is negative. Therefore from this, we can conclude that a convex lens need not necessarily be a converging and a concave lens diverging. Every lens has some specific value that we can compute by using the lens makers formula. This topic will explain it with...
What does the thin lens equation calculate? The thin lens equation shows the relationship between the image distance (di), the object distance (do), and the focal length (f) of the lens. For example, if the object distance and image distance are both given, then one can calculate the fo...
is a simplied formula and cannot be applied to meniscus lens. It is generally used to calculate the biconcave (or biconvex) lens. As for the meniscus lens it is a lens with o curved surfaces. The picture of different lens can be read on: en. *** /wiki/Lens_(optics...
Concave lens generally forms a virtual and upright image of an object placed in front of it. The location of the image can be determined either by drawing a ray diagram or evaluating mathematically by using the thin lens equa...
lenses. It is where the lens formula comes into the action. As per optical physics, lens formula relates the distance of an object (u), the distance of an image (v), and the focal length (f) of the lens. Applicable for both the convex and concave lenses, the lens formula is given...
Visit BYJU'S for Mirror Equation Formula, sign conventions along with a solved problem. Mirror Equation for convex lens and concave lens along with a detailed diagram and explanation.