A convex lens of power +4 D is brought in contact with a

power 4dThe 4DX PowerPoint Template consists of three slides with creative layouts for depicting the attributes of this execution methodology. The first slide shows a speedometer diagram withTwo lenses have power of (i) + 2 d (ii) -4D. What is the nature and focal length of each lens? b. An object is kept at a distance of 100 cm from lens of power -4D. Calculate the image distance.