An object is located 4cm from the first of two thin converging lenses of focal lengths 2m and 1m. Respectively. The lenses are separated by 3m. The final image formed by the second lens is located from the source at a distance of

An object is located 4 m from the first of two thin converging lenses of focal lengths 2 m and T m respectively. The lenses are separated by 3 m. The final image formed by the second lens is located from the source at a distance of

Two thin convex lenses of focal lengths 4 cm and 8 cm are separated by a distance of 4 cm in air. The combination will have the focal length

Figure shows an object AB placed in front of two thin coaxial lenses 1 and 2 with focal lengths 24 cm and 9.0 cm, respectively. The object is 6.0 cm from the lens/and the lens separation is L=10cm . Where does the system of two lenses produce an image of the object AB?

An object is placed in front of two convex lenses one by one at a distance u from the lens. The focal lengths of the lenses are 30 cm and 15 cm respectively. If the size of image formed in the two cases is same, then u is

An object is placed in front of two convex lenses one by one at a distance u from the lens. The focal lengths of the lenses are 30 cm and 15 cm respectively. If the size of image formed in the two cases is same, then u is

In a compound microscope consisting of two convex lenses of focal lengths 1.5 cm and 10 cm, the object is 2 cm from the objective and the final image is formed at the least distance of distinct vision (D=25cm) . Find the distance of separation of the two lenses.

An optical system consists of two convergent lenses with focal length f_1=20 cm and f_2=10 cm. The distance between the lenses is d=30 cm. An object is placed at a distance of 30 cm from the first lens. At what distance from the second lens will the images be obtained ?