what is the position and nature of image formed by lens combination shown in figure ? `(f_(1),f_(2) ` are focal lengths)

Find the position of the image formed by the lens combination given in the figure.

Find the position of the image formed by the lens combination given in the following figure :

Draw ray diagrams showing the image formation by a convex lens when an object is placed (a) between optical centre and focus of the lens (b) between focus and twice the focal length of the lens OR Draw the ray diagram when the object is kept between F_(1) and 2F_(1) of the convex lens. With the help of the diagram mention the position and nature of the image formed. [ F_(1) : Principal focus of the lens] (c ) at twice the focal length of the lens (d) at infinity (e ) at the focus of the lens

A convex lens of focal length 30 cm , a concave lens of focal length 120 cm , and a plane mirror are arranged as shown . For an object kept at a distance of 60 cm from the convex lens, the final image, formed by the combination , is a real image , at a distance of : |"Focal length" | = |"Focal length"| = 30 cm " " =120 cm

A convex lens of focal length 30 cm , a concave lens of focal length 120 cm , and a plane mirror are arranged as shown . For an object kept at a distance of 60 cm from the convex lens, the final image, formed by the combination , is a real image , at a distance of : |"Focal length" | = |"Focal length"| = 30 cm " " =120 cm

A convex lens of focal length 30 cm , a concave lens of focal length 120 cm , and a plane mirror are arranged as shown . For an object kept at a distance of 60 cm from the convex lens, the final image, formed by the combination , is a real image , at a distance of : |"Focal length" | = |"Focal length"| = 30 cm " " =120 cm

(a) Using the ray diagram for a system of two lenses of focal lengths f_(1) and f_(2) in contact with each other, show that the two lens system can be regarded as equivalent to a single lens of focal length f, where (1)/(f)=(1)/(f_(1))+(1)/(f_(2)) Also write the relation for the equivalent power of the lens combination. (b) Determine the position of the image formed by the lens combination given in the figure.