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 a distance of 60 cm from the convex lens, the final image, formed by the combination, is a real image, at a distance of :
Thin lens formula -
are object and image distance from lens.
Len's formula is given by
For convex lens =
For concanve lens =
Virtual object 10 cm behind plane mirror.
Hence real image 10 cm infront of mirror or 60 cm from convex lens.
Study 40% syllabus and score up to 100% marks in JEE